Home / 101,614.32-140,080.86-71,305.74

Finding the Fourth Proportional to 101,614.32, 140,080.86 and 71,305.74

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Solution

The fourth proportional to 101,614.32, 140,080.86 and 71,305.74 is: 98,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,614.32 : 140,080.86 = 71,305.74 : x
  2. Step 2: Convert to fraction form
    101,614.32/140,080.86 = 71,305.74/x
  3. Step 3: Cross multiply
    101,614.32x = 140,080.86 × 71,305.74
  4. Step 4: Simplify right side
    101,614.32x = 9,988,569,382.14
  5. Step 5: Solve for x
    x = 9,988,569,382.14/101,614.32
  6. Step 6: Final answer
    x = 98,298.84

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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.