Home / 170,415.20-235,086.55-130,058.90

Finding the Fourth Proportional to 170,415.20, 235,086.55 and 130,058.90

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Solution

The fourth proportional to 170,415.20, 235,086.55 and 130,058.90 is: 179,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,415.20 : 235,086.55 = 130,058.90 : x
  2. Step 2: Convert to fraction form
    170,415.20/235,086.55 = 130,058.90/x
  3. Step 3: Cross multiply
    170,415.20x = 235,086.55 × 130,058.90
  4. Step 4: Simplify right side
    170,415.20x = 30,575,098,097.80
  5. Step 5: Solve for x
    x = 30,575,098,097.80/170,415.20
  6. Step 6: Final answer
    x = 179,415.32

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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.