Home / 145,121.39-217,674.40-45,270.15

Finding the Fourth Proportional to 145,121.39, 217,674.40 and 45,270.15

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Solution

The fourth proportional to 145,121.39, 217,674.40 and 45,270.15 is: 67,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,121.39 : 217,674.40 = 45,270.15 : x
  2. Step 2: Convert to fraction form
    145,121.39/217,674.40 = 45,270.15/x
  3. Step 3: Cross multiply
    145,121.39x = 217,674.40 × 45,270.15
  4. Step 4: Simplify right side
    145,121.39x = 9,854,152,739.16
  5. Step 5: Solve for x
    x = 9,854,152,739.16/145,121.39
  6. Step 6: Final answer
    x = 67,902.83

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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.