Home / 112,835.52-155,707.02-65,086.02

Finding the Fourth Proportional to 112,835.52, 155,707.02 and 65,086.02

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Solution

The fourth proportional to 112,835.52, 155,707.02 and 65,086.02 is: 89,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,835.52 : 155,707.02 = 65,086.02 : x
  2. Step 2: Convert to fraction form
    112,835.52/155,707.02 = 65,086.02/x
  3. Step 3: Cross multiply
    112,835.52x = 155,707.02 × 65,086.02
  4. Step 4: Simplify right side
    112,835.52x = 10,134,350,217.86
  5. Step 5: Solve for x
    x = 10,134,350,217.86/112,835.52
  6. Step 6: Final answer
    x = 89,815.25

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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.