Home / 99,387.93-137,152.87-56,943.73

Finding the Fourth Proportional to 99,387.93, 137,152.87 and 56,943.73

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Solution

The fourth proportional to 99,387.93, 137,152.87 and 56,943.73 is: 78,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387.93 : 137,152.87 = 56,943.73 : x
  2. Step 2: Convert to fraction form
    99,387.93/137,152.87 = 56,943.73/x
  3. Step 3: Cross multiply
    99,387.93x = 137,152.87 × 56,943.73
  4. Step 4: Simplify right side
    99,387.93x = 7,809,995,998.01
  5. Step 5: Solve for x
    x = 7,809,995,998.01/99,387.93
  6. Step 6: Final answer
    x = 78,580.93

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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.