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Finding the Fourth Proportional to 101,320.61, 139,813.34 and 58,288.68

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Solution

The fourth proportional to 101,320.61, 139,813.34 and 58,288.68 is: 80,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,320.61 : 139,813.34 = 58,288.68 : x
  2. Step 2: Convert to fraction form
    101,320.61/139,813.34 = 58,288.68/x
  3. Step 3: Cross multiply
    101,320.61x = 139,813.34 × 58,288.68
  4. Step 4: Simplify right side
    101,320.61x = 8,149,534,743.55
  5. Step 5: Solve for x
    x = 8,149,534,743.55/101,320.61
  6. Step 6: Final answer
    x = 80,433.14

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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.