Home / 118,988.49-164,191.95-71,240.61

Finding the Fourth Proportional to 118,988.49, 164,191.95 and 71,240.61

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Solution

The fourth proportional to 118,988.49, 164,191.95 and 71,240.61 is: 98,304.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,988.49 : 164,191.95 = 71,240.61 : x
  2. Step 2: Convert to fraction form
    118,988.49/164,191.95 = 71,240.61/x
  3. Step 3: Cross multiply
    118,988.49x = 164,191.95 × 71,240.61
  4. Step 4: Simplify right side
    118,988.49x = 11,697,134,675.09
  5. Step 5: Solve for x
    x = 11,697,134,675.09/118,988.49
  6. Step 6: Final answer
    x = 98,304.76

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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.