Home / 115,972.47-160,119.09-89,066.90

Finding the Fourth Proportional to 115,972.47, 160,119.09 and 89,066.90

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Solution

The fourth proportional to 115,972.47, 160,119.09 and 89,066.90 is: 122,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,972.47 : 160,119.09 = 89,066.90 : x
  2. Step 2: Convert to fraction form
    115,972.47/160,119.09 = 89,066.90/x
  3. Step 3: Cross multiply
    115,972.47x = 160,119.09 × 89,066.90
  4. Step 4: Simplify right side
    115,972.47x = 14,261,310,176.53
  5. Step 5: Solve for x
    x = 14,261,310,176.53/115,972.47
  6. Step 6: Final answer
    x = 122,971.51

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1.5x scale

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.