Home / 131,457.38-181,411.18-71,028.04

Finding the Fourth Proportional to 131,457.38, 181,411.18 and 71,028.04

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Solution

The fourth proportional to 131,457.38, 181,411.18 and 71,028.04 is: 98,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,457.38 : 181,411.18 = 71,028.04 : x
  2. Step 2: Convert to fraction form
    131,457.38/181,411.18 = 71,028.04/x
  3. Step 3: Cross multiply
    131,457.38x = 181,411.18 × 71,028.04
  4. Step 4: Simplify right side
    131,457.38x = 12,885,280,549.49
  5. Step 5: Solve for x
    x = 12,885,280,549.49/131,457.38
  6. Step 6: Final answer
    x = 98,018.69

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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.