Home / 99,387.44-137,152.19-56,943.23

Finding the Fourth Proportional to 99,387.44, 137,152.19 and 56,943.23

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Solution

The fourth proportional to 99,387.44, 137,152.19 and 56,943.23 is: 78,580.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387.44 : 137,152.19 = 56,943.23 : x
  2. Step 2: Convert to fraction form
    99,387.44/137,152.19 = 56,943.23/x
  3. Step 3: Cross multiply
    99,387.44x = 137,152.19 × 56,943.23
  4. Step 4: Simplify right side
    99,387.44x = 7,809,888,415.46
  5. Step 5: Solve for x
    x = 7,809,888,415.46/99,387.44
  6. Step 6: Final answer
    x = 78,580.24

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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.