Home / 102,857.94-141,937.28-57,528.07

Finding the Fourth Proportional to 102,857.94, 141,937.28 and 57,528.07

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Solution

The fourth proportional to 102,857.94, 141,937.28 and 57,528.07 is: 79,385.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,857.94 : 141,937.28 = 57,528.07 : x
  2. Step 2: Convert to fraction form
    102,857.94/141,937.28 = 57,528.07/x
  3. Step 3: Cross multiply
    102,857.94x = 141,937.28 × 57,528.07
  4. Step 4: Simplify right side
    102,857.94x = 8,165,377,779.45
  5. Step 5: Solve for x
    x = 8,165,377,779.45/102,857.94
  6. Step 6: Final answer
    x = 79,385.00

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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.