Home / 118,306.55-163,265.35-64,591.71

Finding the Fourth Proportional to 118,306.55, 163,265.35 and 64,591.71

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Solution

The fourth proportional to 118,306.55, 163,265.35 and 64,591.71 is: 89,137.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,306.55 : 163,265.35 = 64,591.71 : x
  2. Step 2: Convert to fraction form
    118,306.55/163,265.35 = 64,591.71/x
  3. Step 3: Cross multiply
    118,306.55x = 163,265.35 × 64,591.71
  4. Step 4: Simplify right side
    118,306.55x = 10,545,588,140.25
  5. Step 5: Solve for x
    x = 10,545,588,140.25/118,306.55
  6. Step 6: Final answer
    x = 89,137.82

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1.5x scale

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.