Home / 124,411.80-186,530.22-57,781.20

Finding the Fourth Proportional to 124,411.80, 186,530.22 and 57,781.20

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Solution

The fourth proportional to 124,411.80, 186,530.22 and 57,781.20 is: 86,631.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,411.80 : 186,530.22 = 57,781.20 : x
  2. Step 2: Convert to fraction form
    124,411.80/186,530.22 = 57,781.20/x
  3. Step 3: Cross multiply
    124,411.80x = 186,530.22 × 57,781.20
  4. Step 4: Simplify right side
    124,411.80x = 10,777,939,947.86
  5. Step 5: Solve for x
    x = 10,777,939,947.86/124,411.80
  6. Step 6: Final answer
    x = 86,631.17

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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.