Home / 102,471.09-141,410.88-57,152.04

Finding the Fourth Proportional to 102,471.09, 141,410.88 and 57,152.04

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Solution

The fourth proportional to 102,471.09, 141,410.88 and 57,152.04 is: 78,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,471.09 : 141,410.88 = 57,152.04 : x
  2. Step 2: Convert to fraction form
    102,471.09/141,410.88 = 57,152.04/x
  3. Step 3: Cross multiply
    102,471.09x = 141,410.88 × 57,152.04
  4. Step 4: Simplify right side
    102,471.09x = 8,081,920,270.20
  5. Step 5: Solve for x
    x = 8,081,920,270.20/102,471.09
  6. Step 6: Final answer
    x = 78,870.25

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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.