Home / 107,129.16-147,835.89-59,382.09

Finding the Fourth Proportional to 107,129.16, 147,835.89 and 59,382.09

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Solution

The fourth proportional to 107,129.16, 147,835.89 and 59,382.09 is: 81,945.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,129.16 : 147,835.89 = 59,382.09 : x
  2. Step 2: Convert to fraction form
    107,129.16/147,835.89 = 59,382.09/x
  3. Step 3: Cross multiply
    107,129.16x = 147,835.89 × 59,382.09
  4. Step 4: Simplify right side
    107,129.16x = 8,778,804,125.21
  5. Step 5: Solve for x
    x = 8,778,804,125.21/107,129.16
  6. Step 6: Final answer
    x = 81,945.98

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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.