Home / 118,213.96-163,139.95-67,231.34

Finding the Fourth Proportional to 118,213.96, 163,139.95 and 67,231.34

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Solution

The fourth proportional to 118,213.96, 163,139.95 and 67,231.34 is: 92,781.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,213.96 : 163,139.95 = 67,231.34 : x
  2. Step 2: Convert to fraction form
    118,213.96/163,139.95 = 67,231.34/x
  3. Step 3: Cross multiply
    118,213.96x = 163,139.95 × 67,231.34
  4. Step 4: Simplify right side
    118,213.96x = 10,968,117,595.89
  5. Step 5: Solve for x
    x = 10,968,117,595.89/118,213.96
  6. Step 6: Final answer
    x = 92,781.92

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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.