Home / 137,345.63-189,520.97-79,997.52

Finding the Fourth Proportional to 137,345.63, 189,520.97 and 79,997.52

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Solution

The fourth proportional to 137,345.63, 189,520.97 and 79,997.52 is: 110,387.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,345.63 : 189,520.97 = 79,997.52 : x
  2. Step 2: Convert to fraction form
    137,345.63/189,520.97 = 79,997.52/x
  3. Step 3: Cross multiply
    137,345.63x = 189,520.97 × 79,997.52
  4. Step 4: Simplify right side
    137,345.63x = 15,161,207,898.71
  5. Step 5: Solve for x
    x = 15,161,207,898.71/137,345.63
  6. Step 6: Final answer
    x = 110,387.26

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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.