Home / 121,569.02-167,842.30-83,392.52

Finding the Fourth Proportional to 121,569.02, 167,842.30 and 83,392.52

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Solution

The fourth proportional to 121,569.02, 167,842.30 and 83,392.52 is: 115,134.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,569.02 : 167,842.30 = 83,392.52 : x
  2. Step 2: Convert to fraction form
    121,569.02/167,842.30 = 83,392.52/x
  3. Step 3: Cross multiply
    121,569.02x = 167,842.30 × 83,392.52
  4. Step 4: Simplify right side
    121,569.02x = 13,996,792,359.60
  5. Step 5: Solve for x
    x = 13,996,792,359.60/121,569.02
  6. Step 6: Final answer
    x = 115,134.53

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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.