Home / 145,327.60-217,991.40-103,337.20

Finding the Fourth Proportional to 145,327.60, 217,991.40 and 103,337.20

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Solution

The fourth proportional to 145,327.60, 217,991.40 and 103,337.20 is: 155,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,327.60 : 217,991.40 = 103,337.20 : x
  2. Step 2: Convert to fraction form
    145,327.60/217,991.40 = 103,337.20/x
  3. Step 3: Cross multiply
    145,327.60x = 217,991.40 × 103,337.20
  4. Step 4: Simplify right side
    145,327.60x = 22,526,620,900.08
  5. Step 5: Solve for x
    x = 22,526,620,900.08/145,327.60
  6. Step 6: Final answer
    x = 155,005.80

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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.