Home / 145,008.60-218,096.10-129,845.40

Finding the Fourth Proportional to 145,008.60, 218,096.10 and 129,845.40

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Solution

The fourth proportional to 145,008.60, 218,096.10 and 129,845.40 is: 195,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,008.60 : 218,096.10 = 129,845.40 : x
  2. Step 2: Convert to fraction form
    145,008.60/218,096.10 = 129,845.40/x
  3. Step 3: Cross multiply
    145,008.60x = 218,096.10 × 129,845.40
  4. Step 4: Simplify right side
    145,008.60x = 28,318,775,342.94
  5. Step 5: Solve for x
    x = 28,318,775,342.94/145,008.60
  6. Step 6: Final answer
    x = 195,290.32

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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.