Home / 115,989.96-160,143.24-89,084.40

Finding the Fourth Proportional to 115,989.96, 160,143.24 and 89,084.40

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Solution

The fourth proportional to 115,989.96, 160,143.24 and 89,084.40 is: 122,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,989.96 : 160,143.24 = 89,084.40 : x
  2. Step 2: Convert to fraction form
    115,989.96/160,143.24 = 89,084.40/x
  3. Step 3: Cross multiply
    115,989.96x = 160,143.24 × 89,084.40
  4. Step 4: Simplify right side
    115,989.96x = 14,266,264,449.46
  5. Step 5: Solve for x
    x = 14,266,264,449.46/115,989.96
  6. Step 6: Final answer
    x = 122,995.68

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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.