Home / 103,714.38-155,440.35-66,259.98

Finding the Fourth Proportional to 103,714.38, 155,440.35 and 66,259.98

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Solution

The fourth proportional to 103,714.38, 155,440.35 and 66,259.98 is: 99,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,714.38 : 155,440.35 = 66,259.98 : x
  2. Step 2: Convert to fraction form
    103,714.38/155,440.35 = 66,259.98/x
  3. Step 3: Cross multiply
    103,714.38x = 155,440.35 × 66,259.98
  4. Step 4: Simplify right side
    103,714.38x = 10,299,474,482.19
  5. Step 5: Solve for x
    x = 10,299,474,482.19/103,714.38
  6. Step 6: Final answer
    x = 99,306.14

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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.