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Finding the Fourth Proportional to 101,527.56, 140,147.28 and 90,898.74

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Solution

The fourth proportional to 101,527.56, 140,147.28 and 90,898.74 is: 125,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,527.56 : 140,147.28 = 90,898.74 : x
  2. Step 2: Convert to fraction form
    101,527.56/140,147.28 = 90,898.74/x
  3. Step 3: Cross multiply
    101,527.56x = 140,147.28 × 90,898.74
  4. Step 4: Simplify right side
    101,527.56x = 12,739,211,166.43
  5. Step 5: Solve for x
    x = 12,739,211,166.43/101,527.56
  6. Step 6: Final answer
    x = 125,475.40

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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.