Home / 120,256.55-166,005.16-74,957.10

Finding the Fourth Proportional to 120,256.55, 166,005.16 and 74,957.10

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Solution

The fourth proportional to 120,256.55, 166,005.16 and 74,957.10 is: 103,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,256.55 : 166,005.16 = 74,957.10 : x
  2. Step 2: Convert to fraction form
    120,256.55/166,005.16 = 74,957.10/x
  3. Step 3: Cross multiply
    120,256.55x = 166,005.16 × 74,957.10
  4. Step 4: Simplify right side
    120,256.55x = 12,443,265,191.24
  5. Step 5: Solve for x
    x = 12,443,265,191.24/120,256.55
  6. Step 6: Final answer
    x = 103,472.66

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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.