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Finding the Fourth Proportional to 160,137.90, 220,980.81 and 88,513.65

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Solution

The fourth proportional to 160,137.90, 220,980.81 and 88,513.65 is: 122,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,137.90 : 220,980.81 = 88,513.65 : x
  2. Step 2: Convert to fraction form
    160,137.90/220,980.81 = 88,513.65/x
  3. Step 3: Cross multiply
    160,137.90x = 220,980.81 × 88,513.65
  4. Step 4: Simplify right side
    160,137.90x = 19,559,818,073.06
  5. Step 5: Solve for x
    x = 19,559,818,073.06/160,137.90
  6. Step 6: Final answer
    x = 122,143.59

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1.5x scale

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.