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Finding the Fourth Proportional to 90,232, 135,347.38 and 70,527.12

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Solution

The fourth proportional to 90,232, 135,347.38 and 70,527.12 is: 105,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,232 : 135,347.38 = 70,527.12 : x
  2. Step 2: Convert to fraction form
    90,232/135,347.38 = 70,527.12/x
  3. Step 3: Cross multiply
    90,232x = 135,347.38 × 70,527.12
  4. Step 4: Simplify right side
    90,232x = 9,545,660,910.95
  5. Step 5: Solve for x
    x = 9,545,660,910.95/90,232
  6. Step 6: Final answer
    x = 105,790.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.