Home / 118,486.91-163,496.14-76,102.85

Finding the Fourth Proportional to 118,486.91, 163,496.14 and 76,102.85

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Solution

The fourth proportional to 118,486.91, 163,496.14 and 76,102.85 is: 105,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,486.91 : 163,496.14 = 76,102.85 : x
  2. Step 2: Convert to fraction form
    118,486.91/163,496.14 = 76,102.85/x
  3. Step 3: Cross multiply
    118,486.91x = 163,496.14 × 76,102.85
  4. Step 4: Simplify right side
    118,486.91x = 12,442,521,210.26
  5. Step 5: Solve for x
    x = 12,442,521,210.26/118,486.91
  6. Step 6: Final answer
    x = 105,011.78

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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.