Home / 100,951.16-139,312.61-58,534.30

Finding the Fourth Proportional to 100,951.16, 139,312.61 and 58,534.30

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Solution

The fourth proportional to 100,951.16, 139,312.61 and 58,534.30 is: 80,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,951.16 : 139,312.61 = 58,534.30 : x
  2. Step 2: Convert to fraction form
    100,951.16/139,312.61 = 58,534.30/x
  3. Step 3: Cross multiply
    100,951.16x = 139,312.61 × 58,534.30
  4. Step 4: Simplify right side
    100,951.16x = 8,154,566,107.52
  5. Step 5: Solve for x
    x = 8,154,566,107.52/100,951.16
  6. Step 6: Final answer
    x = 80,777.34

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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.