Home / 126,712.51-174,882.89-72,264.79

Finding the Fourth Proportional to 126,712.51, 174,882.89 and 72,264.79

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Solution

The fourth proportional to 126,712.51, 174,882.89 and 72,264.79 is: 99,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,712.51 : 174,882.89 = 72,264.79 : x
  2. Step 2: Convert to fraction form
    126,712.51/174,882.89 = 72,264.79/x
  3. Step 3: Cross multiply
    126,712.51x = 174,882.89 × 72,264.79
  4. Step 4: Simplify right side
    126,712.51x = 12,637,875,320.44
  5. Step 5: Solve for x
    x = 12,637,875,320.44/126,712.51
  6. Step 6: Final answer
    x = 99,736.60

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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.