Home / 157,895.01-217,897.97-86,278.05

Finding the Fourth Proportional to 157,895.01, 217,897.97 and 86,278.05

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Solution

The fourth proportional to 157,895.01, 217,897.97 and 86,278.05 is: 119,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,895.01 : 217,897.97 = 86,278.05 : x
  2. Step 2: Convert to fraction form
    157,895.01/217,897.97 = 86,278.05/x
  3. Step 3: Cross multiply
    157,895.01x = 217,897.97 × 86,278.05
  4. Step 4: Simplify right side
    157,895.01x = 18,799,811,519.17
  5. Step 5: Solve for x
    x = 18,799,811,519.17/157,895.01
  6. Step 6: Final answer
    x = 119,065.27

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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.