Home / 125,725.56-173,583.18-78,048.96

Finding the Fourth Proportional to 125,725.56, 173,583.18 and 78,048.96

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Solution

The fourth proportional to 125,725.56, 173,583.18 and 78,048.96 is: 107,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,725.56 : 173,583.18 = 78,048.96 : x
  2. Step 2: Convert to fraction form
    125,725.56/173,583.18 = 78,048.96/x
  3. Step 3: Cross multiply
    125,725.56x = 173,583.18 × 78,048.96
  4. Step 4: Simplify right side
    125,725.56x = 13,547,986,672.49
  5. Step 5: Solve for x
    x = 13,547,986,672.49/125,725.56
  6. Step 6: Final answer
    x = 107,758.41

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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.