Home / 186,204.92-279,088.64-86,153.72

Finding the Fourth Proportional to 186,204.92, 279,088.64 and 86,153.72

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Solution

The fourth proportional to 186,204.92, 279,088.64 and 86,153.72 is: 129,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,204.92 : 279,088.64 = 86,153.72 : x
  2. Step 2: Convert to fraction form
    186,204.92/279,088.64 = 86,153.72/x
  3. Step 3: Cross multiply
    186,204.92x = 279,088.64 × 86,153.72
  4. Step 4: Simplify right side
    186,204.92x = 24,044,523,042.61
  5. Step 5: Solve for x
    x = 24,044,523,042.61/186,204.92
  6. Step 6: Final answer
    x = 129,129.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.