Home / 135,746.25-187,320.84-75,314.88

Finding the Fourth Proportional to 135,746.25, 187,320.84 and 75,314.88

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Solution

The fourth proportional to 135,746.25, 187,320.84 and 75,314.88 is: 103,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,746.25 : 187,320.84 = 75,314.88 : x
  2. Step 2: Convert to fraction form
    135,746.25/187,320.84 = 75,314.88/x
  3. Step 3: Cross multiply
    135,746.25x = 187,320.84 × 75,314.88
  4. Step 4: Simplify right side
    135,746.25x = 14,108,046,303.67
  5. Step 5: Solve for x
    x = 14,108,046,303.67/135,746.25
  6. Step 6: Final answer
    x = 103,929.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.