Home / 120,545.04-180,803.64-31,805.64

Finding the Fourth Proportional to 120,545.04, 180,803.64 and 31,805.64

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Solution

The fourth proportional to 120,545.04, 180,803.64 and 31,805.64 is: 47,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,545.04 : 180,803.64 = 31,805.64 : x
  2. Step 2: Convert to fraction form
    120,545.04/180,803.64 = 31,805.64/x
  3. Step 3: Cross multiply
    120,545.04x = 180,803.64 × 31,805.64
  4. Step 4: Simplify right side
    120,545.04x = 5,750,575,484.53
  5. Step 5: Solve for x
    x = 5,750,575,484.53/120,545.04
  6. Step 6: Final answer
    x = 47,704.79

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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.