Home / 109,726.16-151,419.48-61,977.92

Finding the Fourth Proportional to 109,726.16, 151,419.48 and 61,977.92

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Solution

The fourth proportional to 109,726.16, 151,419.48 and 61,977.92 is: 85,528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726.16 : 151,419.48 = 61,977.92 : x
  2. Step 2: Convert to fraction form
    109,726.16/151,419.48 = 61,977.92/x
  3. Step 3: Cross multiply
    109,726.16x = 151,419.48 × 61,977.92
  4. Step 4: Simplify right side
    109,726.16x = 9,384,664,417.88
  5. Step 5: Solve for x
    x = 9,384,664,417.88/109,726.16
  6. Step 6: Final answer
    x = 85,528.05

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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.