Home / 126,528-174,593.52-69,931.68

Finding the Fourth Proportional to 126,528, 174,593.52 and 69,931.68

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Solution

The fourth proportional to 126,528, 174,593.52 and 69,931.68 is: 96,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528 : 174,593.52 = 69,931.68 : x
  2. Step 2: Convert to fraction form
    126,528/174,593.52 = 69,931.68/x
  3. Step 3: Cross multiply
    126,528x = 174,593.52 × 69,931.68
  4. Step 4: Simplify right side
    126,528x = 12,209,618,170.71
  5. Step 5: Solve for x
    x = 12,209,618,170.71/126,528
  6. Step 6: Final answer
    x = 96,497.36

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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.