Home / 109,663.24-151,335.31-61,919.67

Finding the Fourth Proportional to 109,663.24, 151,335.31 and 61,919.67

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Solution

The fourth proportional to 109,663.24, 151,335.31 and 61,919.67 is: 85,449.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,663.24 : 151,335.31 = 61,919.67 : x
  2. Step 2: Convert to fraction form
    109,663.24/151,335.31 = 61,919.67/x
  3. Step 3: Cross multiply
    109,663.24x = 151,335.31 × 61,919.67
  4. Step 4: Simplify right side
    109,663.24x = 9,370,631,880.61
  5. Step 5: Solve for x
    x = 9,370,631,880.61/109,663.24
  6. Step 6: Final answer
    x = 85,449.16

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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.