Home / 163,141.98-225,132.39-91,520.70

Finding the Fourth Proportional to 163,141.98, 225,132.39 and 91,520.70

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Solution

The fourth proportional to 163,141.98, 225,132.39 and 91,520.70 is: 126,296.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,141.98 : 225,132.39 = 91,520.70 : x
  2. Step 2: Convert to fraction form
    163,141.98/225,132.39 = 91,520.70/x
  3. Step 3: Cross multiply
    163,141.98x = 225,132.39 × 91,520.70
  4. Step 4: Simplify right side
    163,141.98x = 20,604,273,925.47
  5. Step 5: Solve for x
    x = 20,604,273,925.47/163,141.98
  6. Step 6: Final answer
    x = 126,296.58

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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.