Home / 126,578.84-189,702.19-93,142.35

Finding the Fourth Proportional to 126,578.84, 189,702.19 and 93,142.35

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Solution

The fourth proportional to 126,578.84, 189,702.19 and 93,142.35 is: 139,591.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,578.84 : 189,702.19 = 93,142.35 : x
  2. Step 2: Convert to fraction form
    126,578.84/189,702.19 = 93,142.35/x
  3. Step 3: Cross multiply
    126,578.84x = 189,702.19 × 93,142.35
  4. Step 4: Simplify right side
    126,578.84x = 17,669,307,543.89
  5. Step 5: Solve for x
    x = 17,669,307,543.89/126,578.84
  6. Step 6: Final answer
    x = 139,591.32

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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.