Home / 127,931.18-176,545.32-71,346.20

Finding the Fourth Proportional to 127,931.18, 176,545.32 and 71,346.20

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Solution

The fourth proportional to 127,931.18, 176,545.32 and 71,346.20 is: 98,457.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,931.18 : 176,545.32 = 71,346.20 : x
  2. Step 2: Convert to fraction form
    127,931.18/176,545.32 = 71,346.20/x
  3. Step 3: Cross multiply
    127,931.18x = 176,545.32 × 71,346.20
  4. Step 4: Simplify right side
    127,931.18x = 12,595,837,709.78
  5. Step 5: Solve for x
    x = 12,595,837,709.78/127,931.18
  6. Step 6: Final answer
    x = 98,457.92

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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.