Home / 144,041.60-215,728.32-139,057.92

Finding the Fourth Proportional to 144,041.60, 215,728.32 and 139,057.92

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Solution

The fourth proportional to 144,041.60, 215,728.32 and 139,057.92 is: 208,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,041.60 : 215,728.32 = 139,057.92 : x
  2. Step 2: Convert to fraction form
    144,041.60/215,728.32 = 139,057.92/x
  3. Step 3: Cross multiply
    144,041.60x = 215,728.32 × 139,057.92
  4. Step 4: Simplify right side
    144,041.60x = 29,998,731,464.29
  5. Step 5: Solve for x
    x = 29,998,731,464.29/144,041.60
  6. Step 6: Final answer
    x = 208,264.36

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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.