Home / 120,204.15-180,244.05-70,298.83

Finding the Fourth Proportional to 120,204.15, 180,244.05 and 70,298.83

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Solution

The fourth proportional to 120,204.15, 180,244.05 and 70,298.83 is: 105,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,204.15 : 180,244.05 = 70,298.83 : x
  2. Step 2: Convert to fraction form
    120,204.15/180,244.05 = 70,298.83/x
  3. Step 3: Cross multiply
    120,204.15x = 180,244.05 × 70,298.83
  4. Step 4: Simplify right side
    120,204.15x = 12,670,945,829.46
  5. Step 5: Solve for x
    x = 12,670,945,829.46/120,204.15
  6. Step 6: Final answer
    x = 105,411.88

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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.