Home / 144,451.32-216,499.50-81,138.35

Finding the Fourth Proportional to 144,451.32, 216,499.50 and 81,138.35

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Solution

The fourth proportional to 144,451.32, 216,499.50 and 81,138.35 is: 121,607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,451.32 : 216,499.50 = 81,138.35 : x
  2. Step 2: Convert to fraction form
    144,451.32/216,499.50 = 81,138.35/x
  3. Step 3: Cross multiply
    144,451.32x = 216,499.50 × 81,138.35
  4. Step 4: Simplify right side
    144,451.32x = 17,566,412,205.83
  5. Step 5: Solve for x
    x = 17,566,412,205.83/144,451.32
  6. Step 6: Final answer
    x = 121,607.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.