Home / 144,262.10-216,220.35-74,105.30

Finding the Fourth Proportional to 144,262.10, 216,220.35 and 74,105.30

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Solution

The fourth proportional to 144,262.10, 216,220.35 and 74,105.30 is: 111,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,262.10 : 216,220.35 = 74,105.30 : x
  2. Step 2: Convert to fraction form
    144,262.10/216,220.35 = 74,105.30/x
  3. Step 3: Cross multiply
    144,262.10x = 216,220.35 × 74,105.30
  4. Step 4: Simplify right side
    144,262.10x = 16,023,073,902.86
  5. Step 5: Solve for x
    x = 16,023,073,902.86/144,262.10
  6. Step 6: Final answer
    x = 111,069.19

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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.