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Finding the Fourth Proportional to 101,655.28, 140,280.53 and 58,636.55

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Solution

The fourth proportional to 101,655.28, 140,280.53 and 58,636.55 is: 80,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,655.28 : 140,280.53 = 58,636.55 : x
  2. Step 2: Convert to fraction form
    101,655.28/140,280.53 = 58,636.55/x
  3. Step 3: Cross multiply
    101,655.28x = 140,280.53 × 58,636.55
  4. Step 4: Simplify right side
    101,655.28x = 8,225,566,368.89
  5. Step 5: Solve for x
    x = 8,225,566,368.89/101,655.28
  6. Step 6: Final answer
    x = 80,916.27

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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.