Home / 99,601.19-137,447.11-54,280.34

Finding the Fourth Proportional to 99,601.19, 137,447.11 and 54,280.34

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Solution

The fourth proportional to 99,601.19, 137,447.11 and 54,280.34 is: 74,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,601.19 : 137,447.11 = 54,280.34 : x
  2. Step 2: Convert to fraction form
    99,601.19/137,447.11 = 54,280.34/x
  3. Step 3: Cross multiply
    99,601.19x = 137,447.11 × 54,280.34
  4. Step 4: Simplify right side
    99,601.19x = 7,460,675,862.82
  5. Step 5: Solve for x
    x = 7,460,675,862.82/99,601.19
  6. Step 6: Final answer
    x = 74,905.49

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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.