Home / 118,177.92-163,145.72-91,260

Finding the Fourth Proportional to 118,177.92, 163,145.72 and 91,260

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Solution

The fourth proportional to 118,177.92, 163,145.72 and 91,260 is: 125,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,177.92 : 163,145.72 = 91,260 : x
  2. Step 2: Convert to fraction form
    118,177.92/163,145.72 = 91,260/x
  3. Step 3: Cross multiply
    118,177.92x = 163,145.72 × 91,260
  4. Step 4: Simplify right side
    118,177.92x = 14,888,678,407.20
  5. Step 5: Solve for x
    x = 14,888,678,407.20/118,177.92
  6. Step 6: Final answer
    x = 125,985.28

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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.