Home / 145,114.52-217,672.86-39,939.28

Finding the Fourth Proportional to 145,114.52, 217,672.86 and 39,939.28

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Solution

The fourth proportional to 145,114.52, 217,672.86 and 39,939.28 is: 59,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,114.52 : 217,672.86 = 39,939.28 : x
  2. Step 2: Convert to fraction form
    145,114.52/217,672.86 = 39,939.28/x
  3. Step 3: Cross multiply
    145,114.52x = 217,672.86 × 39,939.28
  4. Step 4: Simplify right side
    145,114.52x = 8,693,697,303.94
  5. Step 5: Solve for x
    x = 8,693,697,303.94/145,114.52
  6. Step 6: Final answer
    x = 59,909.22

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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.