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Finding the Fourth Proportional to 103,551.60, 155,442.60 and 64,153.20

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Solution

The fourth proportional to 103,551.60, 155,442.60 and 64,153.20 is: 96,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,551.60 : 155,442.60 = 64,153.20 : x
  2. Step 2: Convert to fraction form
    103,551.60/155,442.60 = 64,153.20/x
  3. Step 3: Cross multiply
    103,551.60x = 155,442.60 × 64,153.20
  4. Step 4: Simplify right side
    103,551.60x = 9,972,140,206.32
  5. Step 5: Solve for x
    x = 9,972,140,206.32/103,551.60
  6. Step 6: Final answer
    x = 96,301.17

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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.