Home / 101,207.28-139,650.30-58,758.42

Finding the Fourth Proportional to 101,207.28, 139,650.30 and 58,758.42

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Solution

The fourth proportional to 101,207.28, 139,650.30 and 58,758.42 is: 81,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,207.28 : 139,650.30 = 58,758.42 : x
  2. Step 2: Convert to fraction form
    101,207.28/139,650.30 = 58,758.42/x
  3. Step 3: Cross multiply
    101,207.28x = 139,650.30 × 58,758.42
  4. Step 4: Simplify right side
    101,207.28x = 8,205,630,980.53
  5. Step 5: Solve for x
    x = 8,205,630,980.53/101,207.28
  6. Step 6: Final answer
    x = 81,077.48

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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.