Home / 102,899.73-142,002.17-57,577.80

Finding the Fourth Proportional to 102,899.73, 142,002.17 and 57,577.80

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Solution

The fourth proportional to 102,899.73, 142,002.17 and 57,577.80 is: 79,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,899.73 : 142,002.17 = 57,577.80 : x
  2. Step 2: Convert to fraction form
    102,899.73/142,002.17 = 57,577.80/x
  3. Step 3: Cross multiply
    102,899.73x = 142,002.17 × 57,577.80
  4. Step 4: Simplify right side
    102,899.73x = 8,176,172,255.94
  5. Step 5: Solve for x
    x = 8,176,172,255.94/102,899.73
  6. Step 6: Final answer
    x = 79,457.66

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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.