Home / 120,480.01-166,258.47-72,725.04

Finding the Fourth Proportional to 120,480.01, 166,258.47 and 72,725.04

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Solution

The fourth proportional to 120,480.01, 166,258.47 and 72,725.04 is: 100,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,480.01 : 166,258.47 = 72,725.04 : x
  2. Step 2: Convert to fraction form
    120,480.01/166,258.47 = 72,725.04/x
  3. Step 3: Cross multiply
    120,480.01x = 166,258.47 × 72,725.04
  4. Step 4: Simplify right side
    120,480.01x = 12,091,154,153.81
  5. Step 5: Solve for x
    x = 12,091,154,153.81/120,480.01
  6. Step 6: Final answer
    x = 100,358.18

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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.