Home / 103,655.04-155,263.86-102,474.06

Finding the Fourth Proportional to 103,655.04, 155,263.86 and 102,474.06

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Solution

The fourth proportional to 103,655.04, 155,263.86 and 102,474.06 is: 153,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,655.04 : 155,263.86 = 102,474.06 : x
  2. Step 2: Convert to fraction form
    103,655.04/155,263.86 = 102,474.06/x
  3. Step 3: Cross multiply
    103,655.04x = 155,263.86 × 102,474.06
  4. Step 4: Simplify right side
    103,655.04x = 15,910,518,105.47
  5. Step 5: Solve for x
    x = 15,910,518,105.47/103,655.04
  6. Step 6: Final answer
    x = 153,494.88

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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.