Home / 107,137.15-147,839.32-59,386.43

Finding the Fourth Proportional to 107,137.15, 147,839.32 and 59,386.43

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Solution

The fourth proportional to 107,137.15, 147,839.32 and 59,386.43 is: 81,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,137.15 : 147,839.32 = 59,386.43 : x
  2. Step 2: Convert to fraction form
    107,137.15/147,839.32 = 59,386.43/x
  3. Step 3: Cross multiply
    107,137.15x = 147,839.32 × 59,386.43
  4. Step 4: Simplify right side
    107,137.15x = 8,779,649,428.43
  5. Step 5: Solve for x
    x = 8,779,649,428.43/107,137.15
  6. Step 6: Final answer
    x = 81,947.76

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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.