Home / 115,643.22-159,585.57-65,341.14

Finding the Fourth Proportional to 115,643.22, 159,585.57 and 65,341.14

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Solution

The fourth proportional to 115,643.22, 159,585.57 and 65,341.14 is: 90,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,643.22 : 159,585.57 = 65,341.14 : x
  2. Step 2: Convert to fraction form
    115,643.22/159,585.57 = 65,341.14/x
  3. Step 3: Cross multiply
    115,643.22x = 159,585.57 × 65,341.14
  4. Step 4: Simplify right side
    115,643.22x = 10,427,503,071.35
  5. Step 5: Solve for x
    x = 10,427,503,071.35/115,643.22
  6. Step 6: Final answer
    x = 90,169.60

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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.