Home / 124,400.30-186,643.65-54,329.90

Finding the Fourth Proportional to 124,400.30, 186,643.65 and 54,329.90

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Solution

The fourth proportional to 124,400.30, 186,643.65 and 54,329.90 is: 81,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,400.30 : 186,643.65 = 54,329.90 : x
  2. Step 2: Convert to fraction form
    124,400.30/186,643.65 = 54,329.90/x
  3. Step 3: Cross multiply
    124,400.30x = 186,643.65 × 54,329.90
  4. Step 4: Simplify right side
    124,400.30x = 10,140,330,840.14
  5. Step 5: Solve for x
    x = 10,140,330,840.14/124,400.30
  6. Step 6: Final answer
    x = 81,513.72

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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.