Home / 103,025.88-142,178.85-57,703.74

Finding the Fourth Proportional to 103,025.88, 142,178.85 and 57,703.74

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Solution

The fourth proportional to 103,025.88, 142,178.85 and 57,703.74 is: 79,632.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,025.88 : 142,178.85 = 57,703.74 : x
  2. Step 2: Convert to fraction form
    103,025.88/142,178.85 = 57,703.74/x
  3. Step 3: Cross multiply
    103,025.88x = 142,178.85 × 57,703.74
  4. Step 4: Simplify right side
    103,025.88x = 8,204,251,393.90
  5. Step 5: Solve for x
    x = 8,204,251,393.90/103,025.88
  6. Step 6: Final answer
    x = 79,632.92

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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.