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Finding the Fourth Proportional to 101,307.53, 139,800.45 and 58,300.87

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Solution

The fourth proportional to 101,307.53, 139,800.45 and 58,300.87 is: 80,452.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,307.53 : 139,800.45 = 58,300.87 : x
  2. Step 2: Convert to fraction form
    101,307.53/139,800.45 = 58,300.87/x
  3. Step 3: Cross multiply
    101,307.53x = 139,800.45 × 58,300.87
  4. Step 4: Simplify right side
    101,307.53x = 8,150,487,825.10
  5. Step 5: Solve for x
    x = 8,150,487,825.10/101,307.53
  6. Step 6: Final answer
    x = 80,452.93

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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.