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Finding the Fourth Proportional to 124,156.65, 171,334.59 and 73,171.55

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Solution

The fourth proportional to 124,156.65, 171,334.59 and 73,171.55 is: 100,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,156.65 : 171,334.59 = 73,171.55 : x
  2. Step 2: Convert to fraction form
    124,156.65/171,334.59 = 73,171.55/x
  3. Step 3: Cross multiply
    124,156.65x = 171,334.59 × 73,171.55
  4. Step 4: Simplify right side
    124,156.65x = 12,536,818,084.45
  5. Step 5: Solve for x
    x = 12,536,818,084.45/124,156.65
  6. Step 6: Final answer
    x = 100,975.81

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1.5x scale

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.