Home / 103,385.88-142,661.84-58,068.80

Finding the Fourth Proportional to 103,385.88, 142,661.84 and 58,068.80

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Solution

The fourth proportional to 103,385.88, 142,661.84 and 58,068.80 is: 80,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,385.88 : 142,661.84 = 58,068.80 : x
  2. Step 2: Convert to fraction form
    103,385.88/142,661.84 = 58,068.80/x
  3. Step 3: Cross multiply
    103,385.88x = 142,661.84 × 58,068.80
  4. Step 4: Simplify right side
    103,385.88x = 8,284,201,854.59
  5. Step 5: Solve for x
    x = 8,284,201,854.59/103,385.88
  6. Step 6: Final answer
    x = 80,128.95

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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.