Home / 121,764.30-167,925.93-76,446.51

Finding the Fourth Proportional to 121,764.30, 167,925.93 and 76,446.51

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Solution

The fourth proportional to 121,764.30, 167,925.93 and 76,446.51 is: 105,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,764.30 : 167,925.93 = 76,446.51 : x
  2. Step 2: Convert to fraction form
    121,764.30/167,925.93 = 76,446.51/x
  3. Step 3: Cross multiply
    121,764.30x = 167,925.93 × 76,446.51
  4. Step 4: Simplify right side
    121,764.30x = 12,837,351,287.00
  5. Step 5: Solve for x
    x = 12,837,351,287.00/121,764.30
  6. Step 6: Final answer
    x = 105,427.87

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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.