Home / 118,543.20-177,814.80-74,306.40

Finding the Fourth Proportional to 118,543.20, 177,814.80 and 74,306.40

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Solution

The fourth proportional to 118,543.20, 177,814.80 and 74,306.40 is: 111,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,543.20 : 177,814.80 = 74,306.40 : x
  2. Step 2: Convert to fraction form
    118,543.20/177,814.80 = 74,306.40/x
  3. Step 3: Cross multiply
    118,543.20x = 177,814.80 × 74,306.40
  4. Step 4: Simplify right side
    118,543.20x = 13,212,777,654.72
  5. Step 5: Solve for x
    x = 13,212,777,654.72/118,543.20
  6. Step 6: Final answer
    x = 111,459.60

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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.