Home / 126,820.32-175,007.73-72,375.51

Finding the Fourth Proportional to 126,820.32, 175,007.73 and 72,375.51

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Solution

The fourth proportional to 126,820.32, 175,007.73 and 72,375.51 is: 99,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,820.32 : 175,007.73 = 72,375.51 : x
  2. Step 2: Convert to fraction form
    126,820.32/175,007.73 = 72,375.51/x
  3. Step 3: Cross multiply
    126,820.32x = 175,007.73 × 72,375.51
  4. Step 4: Simplify right side
    126,820.32x = 12,666,273,712.69
  5. Step 5: Solve for x
    x = 12,666,273,712.69/126,820.32
  6. Step 6: Final answer
    x = 99,875.74

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1.5x scale

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.