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Finding the Fourth Proportional to 134,654.50, 185,822.21 and 74,225.20

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Solution

The fourth proportional to 134,654.50, 185,822.21 and 74,225.20 is: 102,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,654.50 : 185,822.21 = 74,225.20 : x
  2. Step 2: Convert to fraction form
    134,654.50/185,822.21 = 74,225.20/x
  3. Step 3: Cross multiply
    134,654.50x = 185,822.21 × 74,225.20
  4. Step 4: Simplify right side
    134,654.50x = 13,792,690,701.69
  5. Step 5: Solve for x
    x = 13,792,690,701.69/134,654.50
  6. Step 6: Final answer
    x = 102,430.22

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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.