Home / 112,589.64-155,387.03-63,532.53

Finding the Fourth Proportional to 112,589.64, 155,387.03 and 63,532.53

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Solution

The fourth proportional to 112,589.64, 155,387.03 and 63,532.53 is: 87,682.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,589.64 : 155,387.03 = 63,532.53 : x
  2. Step 2: Convert to fraction form
    112,589.64/155,387.03 = 63,532.53/x
  3. Step 3: Cross multiply
    112,589.64x = 155,387.03 × 63,532.53
  4. Step 4: Simplify right side
    112,589.64x = 9,872,130,827.42
  5. Step 5: Solve for x
    x = 9,872,130,827.42/112,589.64
  6. Step 6: Final answer
    x = 87,682.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.