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Finding the Fourth Proportional to 102,159.35, 140,900.02 and 66,360.89

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Solution

The fourth proportional to 102,159.35, 140,900.02 and 66,360.89 is: 91,526.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,159.35 : 140,900.02 = 66,360.89 : x
  2. Step 2: Convert to fraction form
    102,159.35/140,900.02 = 66,360.89/x
  3. Step 3: Cross multiply
    102,159.35x = 140,900.02 × 66,360.89
  4. Step 4: Simplify right side
    102,159.35x = 9,350,250,728.22
  5. Step 5: Solve for x
    x = 9,350,250,728.22/102,159.35
  6. Step 6: Final answer
    x = 91,526.14

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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.