Home / 160,756.57-221,820.33-89,137.11

Finding the Fourth Proportional to 160,756.57, 221,820.33 and 89,137.11

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Solution

The fourth proportional to 160,756.57, 221,820.33 and 89,137.11 is: 122,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,756.57 : 221,820.33 = 89,137.11 : x
  2. Step 2: Convert to fraction form
    160,756.57/221,820.33 = 89,137.11/x
  3. Step 3: Cross multiply
    160,756.57x = 221,820.33 × 89,137.11
  4. Step 4: Simplify right side
    160,756.57x = 19,772,423,155.45
  5. Step 5: Solve for x
    x = 19,772,423,155.45/160,756.57
  6. Step 6: Final answer
    x = 122,996.05

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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.