Home / 118,306.90-163,238.57-75,270.85

Finding the Fourth Proportional to 118,306.90, 163,238.57 and 75,270.85

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Solution

The fourth proportional to 118,306.90, 163,238.57 and 75,270.85 is: 103,857.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,306.90 : 163,238.57 = 75,270.85 : x
  2. Step 2: Convert to fraction form
    118,306.90/163,238.57 = 75,270.85/x
  3. Step 3: Cross multiply
    118,306.90x = 163,238.57 × 75,270.85
  4. Step 4: Simplify right side
    118,306.90x = 12,287,104,724.14
  5. Step 5: Solve for x
    x = 12,287,104,724.14/118,306.90
  6. Step 6: Final answer
    x = 103,857.89

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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.