Home / 109,210.64-150,680.52-61,461.20

Finding the Fourth Proportional to 109,210.64, 150,680.52 and 61,461.20

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Solution

The fourth proportional to 109,210.64, 150,680.52 and 61,461.20 is: 84,799.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,210.64 : 150,680.52 = 61,461.20 : x
  2. Step 2: Convert to fraction form
    109,210.64/150,680.52 = 61,461.20/x
  3. Step 3: Cross multiply
    109,210.64x = 150,680.52 × 61,461.20
  4. Step 4: Simplify right side
    109,210.64x = 9,261,005,575.82
  5. Step 5: Solve for x
    x = 9,261,005,575.82/109,210.64
  6. Step 6: Final answer
    x = 84,799.48

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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.