Home / 121,568.02-167,840.91-83,391.52

Finding the Fourth Proportional to 121,568.02, 167,840.91 and 83,391.52

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Solution

The fourth proportional to 121,568.02, 167,840.91 and 83,391.52 is: 115,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,568.02 : 167,840.91 = 83,391.52 : x
  2. Step 2: Convert to fraction form
    121,568.02/167,840.91 = 83,391.52/x
  3. Step 3: Cross multiply
    121,568.02x = 167,840.91 × 83,391.52
  4. Step 4: Simplify right side
    121,568.02x = 13,996,508,603.08
  5. Step 5: Solve for x
    x = 13,996,508,603.08/121,568.02
  6. Step 6: Final answer
    x = 115,133.15

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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.