Home / 120,887.60-181,288.20-42,004.40

Finding the Fourth Proportional to 120,887.60, 181,288.20 and 42,004.40

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Solution

The fourth proportional to 120,887.60, 181,288.20 and 42,004.40 is: 62,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,887.60 : 181,288.20 = 42,004.40 : x
  2. Step 2: Convert to fraction form
    120,887.60/181,288.20 = 42,004.40/x
  3. Step 3: Cross multiply
    120,887.60x = 181,288.20 × 42,004.40
  4. Step 4: Simplify right side
    120,887.60x = 7,614,902,068.08
  5. Step 5: Solve for x
    x = 7,614,902,068.08/120,887.60
  6. Step 6: Final answer
    x = 62,991.59

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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.