Home / 125,313.12-172,931.76-71,614.80

Finding the Fourth Proportional to 125,313.12, 172,931.76 and 71,614.80

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Solution

The fourth proportional to 125,313.12, 172,931.76 and 71,614.80 is: 98,828.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,313.12 : 172,931.76 = 71,614.80 : x
  2. Step 2: Convert to fraction form
    125,313.12/172,931.76 = 71,614.80/x
  3. Step 3: Cross multiply
    125,313.12x = 172,931.76 × 71,614.80
  4. Step 4: Simplify right side
    125,313.12x = 12,384,473,406.05
  5. Step 5: Solve for x
    x = 12,384,473,406.05/125,313.12
  6. Step 6: Final answer
    x = 98,828.23

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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.