Home / 160,799.16-221,901.66-88,203.72

Finding the Fourth Proportional to 160,799.16, 221,901.66 and 88,203.72

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Solution

The fourth proportional to 160,799.16, 221,901.66 and 88,203.72 is: 121,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,799.16 : 221,901.66 = 88,203.72 : x
  2. Step 2: Convert to fraction form
    160,799.16/221,901.66 = 88,203.72/x
  3. Step 3: Cross multiply
    160,799.16x = 221,901.66 × 88,203.72
  4. Step 4: Simplify right side
    160,799.16x = 19,572,551,886.18
  5. Step 5: Solve for x
    x = 19,572,551,886.18/160,799.16
  6. Step 6: Final answer
    x = 121,720.49

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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.