Home / 109,938.72-151,718.81-62,191.11

Finding the Fourth Proportional to 109,938.72, 151,718.81 and 62,191.11

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Solution

The fourth proportional to 109,938.72, 151,718.81 and 62,191.11 is: 85,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938.72 : 151,718.81 = 62,191.11 : x
  2. Step 2: Convert to fraction form
    109,938.72/151,718.81 = 62,191.11/x
  3. Step 3: Cross multiply
    109,938.72x = 151,718.81 × 62,191.11
  4. Step 4: Simplify right side
    109,938.72x = 9,435,560,598.66
  5. Step 5: Solve for x
    x = 9,435,560,598.66/109,938.72
  6. Step 6: Final answer
    x = 85,825.64

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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.