Home / 131,424.27-197,547.90-86,732.82

Finding the Fourth Proportional to 131,424.27, 197,547.90 and 86,732.82

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Solution

The fourth proportional to 131,424.27, 197,547.90 and 86,732.82 is: 130,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,424.27 : 197,547.90 = 86,732.82 : x
  2. Step 2: Convert to fraction form
    131,424.27/197,547.90 = 86,732.82/x
  3. Step 3: Cross multiply
    131,424.27x = 197,547.90 × 86,732.82
  4. Step 4: Simplify right side
    131,424.27x = 17,133,886,081.68
  5. Step 5: Solve for x
    x = 17,133,886,081.68/131,424.27
  6. Step 6: Final answer
    x = 130,370.80

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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.