Home / 120,373.11-180,555.34-45,490.23

Finding the Fourth Proportional to 120,373.11, 180,555.34 and 45,490.23

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Solution

The fourth proportional to 120,373.11, 180,555.34 and 45,490.23 is: 68,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,373.11 : 180,555.34 = 45,490.23 : x
  2. Step 2: Convert to fraction form
    120,373.11/180,555.34 = 45,490.23/x
  3. Step 3: Cross multiply
    120,373.11x = 180,555.34 × 45,490.23
  4. Step 4: Simplify right side
    120,373.11x = 8,213,502,927.83
  5. Step 5: Solve for x
    x = 8,213,502,927.83/120,373.11
  6. Step 6: Final answer
    x = 68,233.70

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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.