Home / 131,556.69-181,547.87-71,126.91

Finding the Fourth Proportional to 131,556.69, 181,547.87 and 71,126.91

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Solution

The fourth proportional to 131,556.69, 181,547.87 and 71,126.91 is: 98,154.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,556.69 : 181,547.87 = 71,126.91 : x
  2. Step 2: Convert to fraction form
    131,556.69/181,547.87 = 71,126.91/x
  3. Step 3: Cross multiply
    131,556.69x = 181,547.87 × 71,126.91
  4. Step 4: Simplify right side
    131,556.69x = 12,912,938,654.55
  5. Step 5: Solve for x
    x = 12,912,938,654.55/131,556.69
  6. Step 6: Final answer
    x = 98,154.94

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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.