Home / 143,173.01-197,573.35-79,514.91

Finding the Fourth Proportional to 143,173.01, 197,573.35 and 79,514.91

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Solution

The fourth proportional to 143,173.01, 197,573.35 and 79,514.91 is: 109,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,173.01 : 197,573.35 = 79,514.91 : x
  2. Step 2: Convert to fraction form
    143,173.01/197,573.35 = 79,514.91/x
  3. Step 3: Cross multiply
    143,173.01x = 197,573.35 × 79,514.91
  4. Step 4: Simplify right side
    143,173.01x = 15,710,026,944.86
  5. Step 5: Solve for x
    x = 15,710,026,944.86/143,173.01
  6. Step 6: Final answer
    x = 109,727.57

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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.