Home / 122,479.15-169,039.65-74,760.22

Finding the Fourth Proportional to 122,479.15, 169,039.65 and 74,760.22

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Solution

The fourth proportional to 122,479.15, 169,039.65 and 74,760.22 is: 103,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,479.15 : 169,039.65 = 74,760.22 : x
  2. Step 2: Convert to fraction form
    122,479.15/169,039.65 = 74,760.22/x
  3. Step 3: Cross multiply
    122,479.15x = 169,039.65 × 74,760.22
  4. Step 4: Simplify right side
    122,479.15x = 12,637,441,422.72
  5. Step 5: Solve for x
    x = 12,637,441,422.72/122,479.15
  6. Step 6: Final answer
    x = 103,180.35

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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.