Home / 145,545.60-200,838.64-81,882.04

Finding the Fourth Proportional to 145,545.60, 200,838.64 and 81,882.04

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Solution

The fourth proportional to 145,545.60, 200,838.64 and 81,882.04 is: 112,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,545.60 : 200,838.64 = 81,882.04 : x
  2. Step 2: Convert to fraction form
    145,545.60/200,838.64 = 81,882.04/x
  3. Step 3: Cross multiply
    145,545.60x = 200,838.64 × 81,882.04
  4. Step 4: Simplify right side
    145,545.60x = 16,445,077,554.03
  5. Step 5: Solve for x
    x = 16,445,077,554.03/145,545.60
  6. Step 6: Final answer
    x = 112,989.18

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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.