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Finding the Fourth Proportional to 125,900.80, 188,851.20 and 97,360.45

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Solution

The fourth proportional to 125,900.80, 188,851.20 and 97,360.45 is: 146,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,900.80 : 188,851.20 = 97,360.45 : x
  2. Step 2: Convert to fraction form
    125,900.80/188,851.20 = 97,360.45/x
  3. Step 3: Cross multiply
    125,900.80x = 188,851.20 × 97,360.45
  4. Step 4: Simplify right side
    125,900.80x = 18,386,637,815.04
  5. Step 5: Solve for x
    x = 18,386,637,815.04/125,900.80
  6. Step 6: Final answer
    x = 146,040.68

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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.