Home / 170,438.15-235,427.24-138,292.90

Finding the Fourth Proportional to 170,438.15, 235,427.24 and 138,292.90

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Solution

The fourth proportional to 170,438.15, 235,427.24 and 138,292.90 is: 191,024.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,438.15 : 235,427.24 = 138,292.90 : x
  2. Step 2: Convert to fraction form
    170,438.15/235,427.24 = 138,292.90/x
  3. Step 3: Cross multiply
    170,438.15x = 235,427.24 × 138,292.90
  4. Step 4: Simplify right side
    170,438.15x = 32,557,915,758.60
  5. Step 5: Solve for x
    x = 32,557,915,758.60/170,438.15
  6. Step 6: Final answer
    x = 191,024.81

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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.