Home / 122,889.06-169,599.66-75,174.15

Finding the Fourth Proportional to 122,889.06, 169,599.66 and 75,174.15

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Solution

The fourth proportional to 122,889.06, 169,599.66 and 75,174.15 is: 103,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,889.06 : 169,599.66 = 75,174.15 : x
  2. Step 2: Convert to fraction form
    122,889.06/169,599.66 = 75,174.15/x
  3. Step 3: Cross multiply
    122,889.06x = 169,599.66 × 75,174.15
  4. Step 4: Simplify right side
    122,889.06x = 12,749,510,280.79
  5. Step 5: Solve for x
    x = 12,749,510,280.79/122,889.06
  6. Step 6: Final answer
    x = 103,748.13

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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.