Home / 160,705.47-221,758.64-89,079.40

Finding the Fourth Proportional to 160,705.47, 221,758.64 and 89,079.40

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Solution

The fourth proportional to 160,705.47, 221,758.64 and 89,079.40 is: 122,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,705.47 : 221,758.64 = 89,079.40 : x
  2. Step 2: Convert to fraction form
    160,705.47/221,758.64 = 89,079.40/x
  3. Step 3: Cross multiply
    160,705.47x = 221,758.64 × 89,079.40
  4. Step 4: Simplify right side
    160,705.47x = 19,754,125,487.22
  5. Step 5: Solve for x
    x = 19,754,125,487.22/160,705.47
  6. Step 6: Final answer
    x = 122,921.30

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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.