Home / 121,445.24-167,590.31-66,999.58

Finding the Fourth Proportional to 121,445.24, 167,590.31 and 66,999.58

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Solution

The fourth proportional to 121,445.24, 167,590.31 and 66,999.58 is: 92,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,445.24 : 167,590.31 = 66,999.58 : x
  2. Step 2: Convert to fraction form
    121,445.24/167,590.31 = 66,999.58/x
  3. Step 3: Cross multiply
    121,445.24x = 167,590.31 × 66,999.58
  4. Step 4: Simplify right side
    121,445.24x = 11,228,479,628.10
  5. Step 5: Solve for x
    x = 11,228,479,628.10/121,445.24
  6. Step 6: Final answer
    x = 92,457.14

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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.