Home / 120,447.04-166,145.54-72,672.16

Finding the Fourth Proportional to 120,447.04, 166,145.54 and 72,672.16

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Solution

The fourth proportional to 120,447.04, 166,145.54 and 72,672.16 is: 100,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,447.04 : 166,145.54 = 72,672.16 : x
  2. Step 2: Convert to fraction form
    120,447.04/166,145.54 = 72,672.16/x
  3. Step 3: Cross multiply
    120,447.04x = 166,145.54 × 72,672.16
  4. Step 4: Simplify right side
    120,447.04x = 12,074,155,266.17
  5. Step 5: Solve for x
    x = 12,074,155,266.17/120,447.04
  6. Step 6: Final answer
    x = 100,244.52

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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.