Home / 154,539.90-231,622.65-65,606.70

Finding the Fourth Proportional to 154,539.90, 231,622.65 and 65,606.70

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Solution

The fourth proportional to 154,539.90, 231,622.65 and 65,606.70 is: 98,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,539.90 : 231,622.65 = 65,606.70 : x
  2. Step 2: Convert to fraction form
    154,539.90/231,622.65 = 65,606.70/x
  3. Step 3: Cross multiply
    154,539.90x = 231,622.65 × 65,606.70
  4. Step 4: Simplify right side
    154,539.90x = 15,195,997,711.76
  5. Step 5: Solve for x
    x = 15,195,997,711.76/154,539.90
  6. Step 6: Final answer
    x = 98,330.58

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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.