Home / 110,986.79-153,125.51-67,921.43

Finding the Fourth Proportional to 110,986.79, 153,125.51 and 67,921.43

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Solution

The fourth proportional to 110,986.79, 153,125.51 and 67,921.43 is: 93,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,986.79 : 153,125.51 = 67,921.43 : x
  2. Step 2: Convert to fraction form
    110,986.79/153,125.51 = 67,921.43/x
  3. Step 3: Cross multiply
    110,986.79x = 153,125.51 × 67,921.43
  4. Step 4: Simplify right side
    110,986.79x = 10,400,502,503.44
  5. Step 5: Solve for x
    x = 10,400,502,503.44/110,986.79
  6. Step 6: Final answer
    x = 93,709.38

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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.