Home / 120,800.20-181,346.10-119,925.40

Finding the Fourth Proportional to 120,800.20, 181,346.10 and 119,925.40

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Solution

The fourth proportional to 120,800.20, 181,346.10 and 119,925.40 is: 180,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,800.20 : 181,346.10 = 119,925.40 : x
  2. Step 2: Convert to fraction form
    120,800.20/181,346.10 = 119,925.40/x
  3. Step 3: Cross multiply
    120,800.20x = 181,346.10 × 119,925.40
  4. Step 4: Simplify right side
    120,800.20x = 21,748,003,580.94
  5. Step 5: Solve for x
    x = 21,748,003,580.94/120,800.20
  6. Step 6: Final answer
    x = 180,032.84

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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.