Home / 105,091.20-157,590.24-30,194.40

Finding the Fourth Proportional to 105,091.20, 157,590.24 and 30,194.40

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Solution

The fourth proportional to 105,091.20, 157,590.24 and 30,194.40 is: 45,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,091.20 : 157,590.24 = 30,194.40 : x
  2. Step 2: Convert to fraction form
    105,091.20/157,590.24 = 30,194.40/x
  3. Step 3: Cross multiply
    105,091.20x = 157,590.24 × 30,194.40
  4. Step 4: Simplify right side
    105,091.20x = 4,758,342,742.66
  5. Step 5: Solve for x
    x = 4,758,342,742.66/105,091.20
  6. Step 6: Final answer
    x = 45,278.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.