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Finding the Fourth Proportional to 125,154.40, 188,264.34 and 113,449.32

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Solution

The fourth proportional to 125,154.40, 188,264.34 and 113,449.32 is: 170,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,154.40 : 188,264.34 = 113,449.32 : x
  2. Step 2: Convert to fraction form
    125,154.40/188,264.34 = 113,449.32/x
  3. Step 3: Cross multiply
    125,154.40x = 188,264.34 × 113,449.32
  4. Step 4: Simplify right side
    125,154.40x = 21,358,461,353.25
  5. Step 5: Solve for x
    x = 21,358,461,353.25/125,154.40
  6. Step 6: Final answer
    x = 170,656.90

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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.