Home / 120,823.53-181,189.10-39,751.70

Finding the Fourth Proportional to 120,823.53, 181,189.10 and 39,751.70

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Solution

The fourth proportional to 120,823.53, 181,189.10 and 39,751.70 is: 59,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,823.53 : 181,189.10 = 39,751.70 : x
  2. Step 2: Convert to fraction form
    120,823.53/181,189.10 = 39,751.70/x
  3. Step 3: Cross multiply
    120,823.53x = 181,189.10 × 39,751.70
  4. Step 4: Simplify right side
    120,823.53x = 7,202,573,641.77
  5. Step 5: Solve for x
    x = 7,202,573,641.77/120,823.53
  6. Step 6: Final answer
    x = 59,612.34

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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.