Home / 102,219.72-141,062.12-56,897.04

Finding the Fourth Proportional to 102,219.72, 141,062.12 and 56,897.04

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Solution

The fourth proportional to 102,219.72, 141,062.12 and 56,897.04 is: 78,517.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,219.72 : 141,062.12 = 56,897.04 : x
  2. Step 2: Convert to fraction form
    102,219.72/141,062.12 = 56,897.04/x
  3. Step 3: Cross multiply
    102,219.72x = 141,062.12 × 56,897.04
  4. Step 4: Simplify right side
    102,219.72x = 8,026,017,084.12
  5. Step 5: Solve for x
    x = 8,026,017,084.12/102,219.72
  6. Step 6: Final answer
    x = 78,517.31

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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.