Home / 112,258.73-154,943.65-64,539.80

Finding the Fourth Proportional to 112,258.73, 154,943.65 and 64,539.80

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Solution

The fourth proportional to 112,258.73, 154,943.65 and 64,539.80 is: 89,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,258.73 : 154,943.65 = 64,539.80 : x
  2. Step 2: Convert to fraction form
    112,258.73/154,943.65 = 64,539.80/x
  3. Step 3: Cross multiply
    112,258.73x = 154,943.65 × 64,539.80
  4. Step 4: Simplify right side
    112,258.73x = 10,000,031,246.20
  5. Step 5: Solve for x
    x = 10,000,031,246.20/112,258.73
  6. Step 6: Final answer
    x = 89,080.21

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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.