Home / 98,954.15-136,446.85-76,242.47

Finding the Fourth Proportional to 98,954.15, 136,446.85 and 76,242.47

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Solution

The fourth proportional to 98,954.15, 136,446.85 and 76,242.47 is: 105,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,954.15 : 136,446.85 = 76,242.47 : x
  2. Step 2: Convert to fraction form
    98,954.15/136,446.85 = 76,242.47/x
  3. Step 3: Cross multiply
    98,954.15x = 136,446.85 × 76,242.47
  4. Step 4: Simplify right side
    98,954.15x = 10,403,044,867.72
  5. Step 5: Solve for x
    x = 10,403,044,867.72/98,954.15
  6. Step 6: Final answer
    x = 105,129.95

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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.