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Finding the Fourth Proportional to 108,479.17, 149,706.80 and 60,729.67

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Solution

The fourth proportional to 108,479.17, 149,706.80 and 60,729.67 is: 83,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,479.17 : 149,706.80 = 60,729.67 : x
  2. Step 2: Convert to fraction form
    108,479.17/149,706.80 = 60,729.67/x
  3. Step 3: Cross multiply
    108,479.17x = 149,706.80 × 60,729.67
  4. Step 4: Simplify right side
    108,479.17x = 9,091,644,560.76
  5. Step 5: Solve for x
    x = 9,091,644,560.76/108,479.17
  6. Step 6: Final answer
    x = 83,810.05

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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.