Home / 126,872,104.88-175,119,994.47-76,628,342.72

Finding the Fourth Proportional to 126,872,104.88, 175,119,994.47 and 76,628,342.72

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Solution

The fourth proportional to 126,872,104.88, 175,119,994.47 and 76,628,342.72 is: 105,769,152.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872,104.88 : 175,119,994.47 = 76,628,342.72 : x
  2. Step 2: Convert to fraction form
    126,872,104.88/175,119,994.47 = 76,628,342.72/x
  3. Step 3: Cross multiply
    126,872,104.88x = 175,119,994.47 × 76,628,342.72
  4. Step 4: Simplify right side
    126,872,104.88x = 13,419,154,953,371,664
  5. Step 5: Solve for x
    x = 13,419,154,953,371,664/126,872,104.88
  6. Step 6: Final answer
    x = 105,769,152.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.