Home / 121,275.60-167,372.64-67,569.36

Finding the Fourth Proportional to 121,275.60, 167,372.64 and 67,569.36

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Solution

The fourth proportional to 121,275.60, 167,372.64 and 67,569.36 is: 93,252.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,275.60 : 167,372.64 = 67,569.36 : x
  2. Step 2: Convert to fraction form
    121,275.60/167,372.64 = 67,569.36/x
  3. Step 3: Cross multiply
    121,275.60x = 167,372.64 × 67,569.36
  4. Step 4: Simplify right side
    121,275.60x = 11,309,262,166.31
  5. Step 5: Solve for x
    x = 11,309,262,166.31/121,275.60
  6. Step 6: Final answer
    x = 93,252.58

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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.