Home / 145,220.20-217,841.10-51,713.80

Finding the Fourth Proportional to 145,220.20, 217,841.10 and 51,713.80

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Solution

The fourth proportional to 145,220.20, 217,841.10 and 51,713.80 is: 77,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220.20 : 217,841.10 = 51,713.80 : x
  2. Step 2: Convert to fraction form
    145,220.20/217,841.10 = 51,713.80/x
  3. Step 3: Cross multiply
    145,220.20x = 217,841.10 × 51,713.80
  4. Step 4: Simplify right side
    145,220.20x = 11,265,391,077.18
  5. Step 5: Solve for x
    x = 11,265,391,077.18/145,220.20
  6. Step 6: Final answer
    x = 77,574.55

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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.