Home / 121,758.02-167,917.27-76,440.22

Finding the Fourth Proportional to 121,758.02, 167,917.27 and 76,440.22

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Solution

The fourth proportional to 121,758.02, 167,917.27 and 76,440.22 is: 105,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,758.02 : 167,917.27 = 76,440.22 : x
  2. Step 2: Convert to fraction form
    121,758.02/167,917.27 = 76,440.22/x
  3. Step 3: Cross multiply
    121,758.02x = 167,917.27 × 76,440.22
  4. Step 4: Simplify right side
    121,758.02x = 12,835,633,537.57
  5. Step 5: Solve for x
    x = 12,835,633,537.57/121,758.02
  6. Step 6: Final answer
    x = 105,419.20

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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.