Home / 112,927.92-155,853.36-65,194.08

Finding the Fourth Proportional to 112,927.92, 155,853.36 and 65,194.08

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Solution

The fourth proportional to 112,927.92, 155,853.36 and 65,194.08 is: 89,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,927.92 : 155,853.36 = 65,194.08 : x
  2. Step 2: Convert to fraction form
    112,927.92/155,853.36 = 65,194.08/x
  3. Step 3: Cross multiply
    112,927.92x = 155,853.36 × 65,194.08
  4. Step 4: Simplify right side
    112,927.92x = 10,160,716,420.11
  5. Step 5: Solve for x
    x = 10,160,716,420.11/112,927.92
  6. Step 6: Final answer
    x = 89,975.24

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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.