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Finding the Fourth Proportional to 170,689.07, 235,441.27 and 103,621.07

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Solution

The fourth proportional to 170,689.07, 235,441.27 and 103,621.07 is: 142,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,689.07 : 235,441.27 = 103,621.07 : x
  2. Step 2: Convert to fraction form
    170,689.07/235,441.27 = 103,621.07/x
  3. Step 3: Cross multiply
    170,689.07x = 235,441.27 × 103,621.07
  4. Step 4: Simplify right side
    170,689.07x = 24,396,676,319.56
  5. Step 5: Solve for x
    x = 24,396,676,319.56/170,689.07
  6. Step 6: Final answer
    x = 142,930.51

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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.