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Finding the Fourth Proportional to 118,238.88, 163,189.92 and 112,924.32

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Solution

The fourth proportional to 118,238.88, 163,189.92 and 112,924.32 is: 155,854.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,238.88 : 163,189.92 = 112,924.32 : x
  2. Step 2: Convert to fraction form
    118,238.88/163,189.92 = 112,924.32/x
  3. Step 3: Cross multiply
    118,238.88x = 163,189.92 × 112,924.32
  4. Step 4: Simplify right side
    118,238.88x = 18,428,110,746.85
  5. Step 5: Solve for x
    x = 18,428,110,746.85/118,238.88
  6. Step 6: Final answer
    x = 155,854.92

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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.