Home / 102,419.10-141,348.85-57,104.46

Finding the Fourth Proportional to 102,419.10, 141,348.85 and 57,104.46

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Solution

The fourth proportional to 102,419.10, 141,348.85 and 57,104.46 is: 78,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,419.10 : 141,348.85 = 57,104.46 : x
  2. Step 2: Convert to fraction form
    102,419.10/141,348.85 = 57,104.46/x
  3. Step 3: Cross multiply
    102,419.10x = 141,348.85 × 57,104.46
  4. Step 4: Simplify right side
    102,419.10x = 8,071,649,608.11
  5. Step 5: Solve for x
    x = 8,071,649,608.11/102,419.10
  6. Step 6: Final answer
    x = 78,810.00

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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.