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Finding the Fourth Proportional to 125,875.87, 173,725.29 and 75,578.11

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Solution

The fourth proportional to 125,875.87, 173,725.29 and 75,578.11 is: 104,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,875.87 : 173,725.29 = 75,578.11 : x
  2. Step 2: Convert to fraction form
    125,875.87/173,725.29 = 75,578.11/x
  3. Step 3: Cross multiply
    125,875.87x = 173,725.29 × 75,578.11
  4. Step 4: Simplify right side
    125,875.87x = 13,129,827,830.88
  5. Step 5: Solve for x
    x = 13,129,827,830.88/125,875.87
  6. Step 6: Final answer
    x = 104,307.75

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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.