Home / 102,290.13-141,204.06-68,775.57

Finding the Fourth Proportional to 102,290.13, 141,204.06 and 68,775.57

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Solution

The fourth proportional to 102,290.13, 141,204.06 and 68,775.57 is: 94,939.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,290.13 : 141,204.06 = 68,775.57 : x
  2. Step 2: Convert to fraction form
    102,290.13/141,204.06 = 68,775.57/x
  3. Step 3: Cross multiply
    102,290.13x = 141,204.06 × 68,775.57
  4. Step 4: Simplify right side
    102,290.13x = 9,711,389,712.81
  5. Step 5: Solve for x
    x = 9,711,389,712.81/102,290.13
  6. Step 6: Final answer
    x = 94,939.66

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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.