Home / 137,113.47-205,718.91-61,205.13

Finding the Fourth Proportional to 137,113.47, 205,718.91 and 61,205.13

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Solution

The fourth proportional to 137,113.47, 205,718.91 and 61,205.13 is: 91,829.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,113.47 : 205,718.91 = 61,205.13 : x
  2. Step 2: Convert to fraction form
    137,113.47/205,718.91 = 61,205.13/x
  3. Step 3: Cross multiply
    137,113.47x = 205,718.91 × 61,205.13
  4. Step 4: Simplify right side
    137,113.47x = 12,591,051,295.39
  5. Step 5: Solve for x
    x = 12,591,051,295.39/137,113.47
  6. Step 6: Final answer
    x = 91,829.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.