Home / 103,631.60-155,562.60-64,233.20

Finding the Fourth Proportional to 103,631.60, 155,562.60 and 64,233.20

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Solution

The fourth proportional to 103,631.60, 155,562.60 and 64,233.20 is: 96,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.60 : 155,562.60 = 64,233.20 : x
  2. Step 2: Convert to fraction form
    103,631.60/155,562.60 = 64,233.20/x
  3. Step 3: Cross multiply
    103,631.60x = 155,562.60 × 64,233.20
  4. Step 4: Simplify right side
    103,631.60x = 9,992,283,598.32
  5. Step 5: Solve for x
    x = 9,992,283,598.32/103,631.60
  6. Step 6: Final answer
    x = 96,421.20

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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.