Home / 109,590.72-151,226.58-67,143.48

Finding the Fourth Proportional to 109,590.72, 151,226.58 and 67,143.48

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Solution

The fourth proportional to 109,590.72, 151,226.58 and 67,143.48 is: 92,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,590.72 : 151,226.58 = 67,143.48 : x
  2. Step 2: Convert to fraction form
    109,590.72/151,226.58 = 67,143.48/x
  3. Step 3: Cross multiply
    109,590.72x = 151,226.58 × 67,143.48
  4. Step 4: Simplify right side
    109,590.72x = 10,153,878,849.70
  5. Step 5: Solve for x
    x = 10,153,878,849.70/109,590.72
  6. Step 6: Final answer
    x = 92,652.73

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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.