Home / 103,663.16-155,291.62-53,776.06

Finding the Fourth Proportional to 103,663.16, 155,291.62 and 53,776.06

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Solution

The fourth proportional to 103,663.16, 155,291.62 and 53,776.06 is: 80,558.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.16 : 155,291.62 = 53,776.06 : x
  2. Step 2: Convert to fraction form
    103,663.16/155,291.62 = 53,776.06/x
  3. Step 3: Cross multiply
    103,663.16x = 155,291.62 × 53,776.06
  4. Step 4: Simplify right side
    103,663.16x = 8,350,971,474.62
  5. Step 5: Solve for x
    x = 8,350,971,474.62/103,663.16
  6. Step 6: Final answer
    x = 80,558.72

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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.