Home / 109,938.20-151,718.06-61,539.28

Finding the Fourth Proportional to 109,938.20, 151,718.06 and 61,539.28

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Solution

The fourth proportional to 109,938.20, 151,718.06 and 61,539.28 is: 84,926.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938.20 : 151,718.06 = 61,539.28 : x
  2. Step 2: Convert to fraction form
    109,938.20/151,718.06 = 61,539.28/x
  3. Step 3: Cross multiply
    109,938.20x = 151,718.06 × 61,539.28
  4. Step 4: Simplify right side
    109,938.20x = 9,336,619,949.95
  5. Step 5: Solve for x
    x = 9,336,619,949.95/109,938.20
  6. Step 6: Final answer
    x = 84,926.08

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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.