Home / 107,133.80-147,853.38-59,402.12

Finding the Fourth Proportional to 107,133.80, 147,853.38 and 59,402.12

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Solution

The fourth proportional to 107,133.80, 147,853.38 and 59,402.12 is: 81,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,133.80 : 147,853.38 = 59,402.12 : x
  2. Step 2: Convert to fraction form
    107,133.80/147,853.38 = 59,402.12/x
  3. Step 3: Cross multiply
    107,133.80x = 147,853.38 × 59,402.12
  4. Step 4: Simplify right side
    107,133.80x = 8,782,804,221.17
  5. Step 5: Solve for x
    x = 8,782,804,221.17/107,133.80
  6. Step 6: Final answer
    x = 81,979.77

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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.