Home / 103,585.11-142,959.65-58,264.80

Finding the Fourth Proportional to 103,585.11, 142,959.65 and 58,264.80

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Solution

The fourth proportional to 103,585.11, 142,959.65 and 58,264.80 is: 80,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,585.11 : 142,959.65 = 58,264.80 : x
  2. Step 2: Convert to fraction form
    103,585.11/142,959.65 = 58,264.80/x
  3. Step 3: Cross multiply
    103,585.11x = 142,959.65 × 58,264.80
  4. Step 4: Simplify right side
    103,585.11x = 8,329,515,415.32
  5. Step 5: Solve for x
    x = 8,329,515,415.32/103,585.11
  6. Step 6: Final answer
    x = 80,412.29

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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.