Home / 170,436.90-235,425.51-138,291.65

Finding the Fourth Proportional to 170,436.90, 235,425.51 and 138,291.65

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Solution

The fourth proportional to 170,436.90, 235,425.51 and 138,291.65 is: 191,023.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,436.90 : 235,425.51 = 138,291.65 : x
  2. Step 2: Convert to fraction form
    170,436.90/235,425.51 = 138,291.65/x
  3. Step 3: Cross multiply
    170,436.90x = 235,425.51 × 138,291.65
  4. Step 4: Simplify right side
    170,436.90x = 32,557,381,052.86
  5. Step 5: Solve for x
    x = 32,557,381,052.86/170,436.90
  6. Step 6: Final answer
    x = 191,023.08

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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.