Home / 103,311.60-154,967.40-102,327.45

Finding the Fourth Proportional to 103,311.60, 154,967.40 and 102,327.45

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Solution

The fourth proportional to 103,311.60, 154,967.40 and 102,327.45 is: 153,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,311.60 : 154,967.40 = 102,327.45 : x
  2. Step 2: Convert to fraction form
    103,311.60/154,967.40 = 102,327.45/x
  3. Step 3: Cross multiply
    103,311.60x = 154,967.40 × 102,327.45
  4. Step 4: Simplify right side
    103,311.60x = 15,857,418,875.13
  5. Step 5: Solve for x
    x = 15,857,418,875.13/103,311.60
  6. Step 6: Final answer
    x = 153,491.18

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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.