Home / 120,432.15-180,657.57-36,185.73

Finding the Fourth Proportional to 120,432.15, 180,657.57 and 36,185.73

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Solution

The fourth proportional to 120,432.15, 180,657.57 and 36,185.73 is: 54,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,432.15 : 180,657.57 = 36,185.73 : x
  2. Step 2: Convert to fraction form
    120,432.15/180,657.57 = 36,185.73/x
  3. Step 3: Cross multiply
    120,432.15x = 180,657.57 × 36,185.73
  4. Step 4: Simplify right side
    120,432.15x = 6,537,226,050.48
  5. Step 5: Solve for x
    x = 6,537,226,050.48/120,432.15
  6. Step 6: Final answer
    x = 54,281.40

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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.