Home / 115,984.02-160,135.08-89,078.46

Finding the Fourth Proportional to 115,984.02, 160,135.08 and 89,078.46

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Solution

The fourth proportional to 115,984.02, 160,135.08 and 89,078.46 is: 122,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,984.02 : 160,135.08 = 89,078.46 : x
  2. Step 2: Convert to fraction form
    115,984.02/160,135.08 = 89,078.46/x
  3. Step 3: Cross multiply
    115,984.02x = 160,135.08 × 89,078.46
  4. Step 4: Simplify right side
    115,984.02x = 14,264,586,318.38
  5. Step 5: Solve for x
    x = 14,264,586,318.38/115,984.02
  6. Step 6: Final answer
    x = 122,987.51

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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.