Home / 109,126.23-150,582-61,378.56

Finding the Fourth Proportional to 109,126.23, 150,582 and 61,378.56

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Solution

The fourth proportional to 109,126.23, 150,582 and 61,378.56 is: 84,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,126.23 : 150,582 = 61,378.56 : x
  2. Step 2: Convert to fraction form
    109,126.23/150,582 = 61,378.56/x
  3. Step 3: Cross multiply
    109,126.23x = 150,582 × 61,378.56
  4. Step 4: Simplify right side
    109,126.23x = 9,242,506,321.92
  5. Step 5: Solve for x
    x = 9,242,506,321.92/109,126.23
  6. Step 6: Final answer
    x = 84,695.55

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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.