Home / 120,719.60-181,079.40-109,444.40

Finding the Fourth Proportional to 120,719.60, 181,079.40 and 109,444.40

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Solution

The fourth proportional to 120,719.60, 181,079.40 and 109,444.40 is: 164,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,719.60 : 181,079.40 = 109,444.40 : x
  2. Step 2: Convert to fraction form
    120,719.60/181,079.40 = 109,444.40/x
  3. Step 3: Cross multiply
    120,719.60x = 181,079.40 × 109,444.40
  4. Step 4: Simplify right side
    120,719.60x = 19,818,126,285.36
  5. Step 5: Solve for x
    x = 19,818,126,285.36/120,719.60
  6. Step 6: Final answer
    x = 164,166.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.