Home / 103,502.03-155,252.70-28,621.98

Finding the Fourth Proportional to 103,502.03, 155,252.70 and 28,621.98

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Solution

The fourth proportional to 103,502.03, 155,252.70 and 28,621.98 is: 42,932.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,502.03 : 155,252.70 = 28,621.98 : x
  2. Step 2: Convert to fraction form
    103,502.03/155,252.70 = 28,621.98/x
  3. Step 3: Cross multiply
    103,502.03x = 155,252.70 × 28,621.98
  4. Step 4: Simplify right side
    103,502.03x = 4,443,639,674.35
  5. Step 5: Solve for x
    x = 4,443,639,674.35/103,502.03
  6. Step 6: Final answer
    x = 42,932.88

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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.