Home / 186,765.90-279,711.45-142,151.10

Finding the Fourth Proportional to 186,765.90, 279,711.45 and 142,151.10

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Solution

The fourth proportional to 186,765.90, 279,711.45 and 142,151.10 is: 212,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,765.90 : 279,711.45 = 142,151.10 : x
  2. Step 2: Convert to fraction form
    186,765.90/279,711.45 = 142,151.10/x
  3. Step 3: Cross multiply
    186,765.90x = 279,711.45 × 142,151.10
  4. Step 4: Simplify right side
    186,765.90x = 39,761,290,300.10
  5. Step 5: Solve for x
    x = 39,761,290,300.10/186,765.90
  6. Step 6: Final answer
    x = 212,893.74

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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.