Home / 99,343.85-137,090.33-56,326.23

Finding the Fourth Proportional to 99,343.85, 137,090.33 and 56,326.23

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Solution

The fourth proportional to 99,343.85, 137,090.33 and 56,326.23 is: 77,727.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,343.85 : 137,090.33 = 56,326.23 : x
  2. Step 2: Convert to fraction form
    99,343.85/137,090.33 = 56,326.23/x
  3. Step 3: Cross multiply
    99,343.85x = 137,090.33 × 56,326.23
  4. Step 4: Simplify right side
    99,343.85x = 7,721,781,176.72
  5. Step 5: Solve for x
    x = 7,721,781,176.72/99,343.85
  6. Step 6: Final answer
    x = 77,727.83

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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.