Home / 159,519.42-220,135.01-90,608.40

Finding the Fourth Proportional to 159,519.42, 220,135.01 and 90,608.40

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Solution

The fourth proportional to 159,519.42, 220,135.01 and 90,608.40 is: 125,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,519.42 : 220,135.01 = 90,608.40 : x
  2. Step 2: Convert to fraction form
    159,519.42/220,135.01 = 90,608.40/x
  3. Step 3: Cross multiply
    159,519.42x = 220,135.01 × 90,608.40
  4. Step 4: Simplify right side
    159,519.42x = 19,946,080,587.04
  5. Step 5: Solve for x
    x = 19,946,080,587.04/159,519.42
  6. Step 6: Final answer
    x = 125,038.57

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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.