Home / 135,543.07-187,049.93-75,114.74

Finding the Fourth Proportional to 135,543.07, 187,049.93 and 75,114.74

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Solution

The fourth proportional to 135,543.07, 187,049.93 and 75,114.74 is: 103,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,543.07 : 187,049.93 = 75,114.74 : x
  2. Step 2: Convert to fraction form
    135,543.07/187,049.93 = 75,114.74/x
  3. Step 3: Cross multiply
    135,543.07x = 187,049.93 × 75,114.74
  4. Step 4: Simplify right side
    135,543.07x = 14,050,206,951.02
  5. Step 5: Solve for x
    x = 14,050,206,951.02/135,543.07
  6. Step 6: Final answer
    x = 103,658.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.