Home / 131,756.09-181,822.12-71,325.16

Finding the Fourth Proportional to 131,756.09, 181,822.12 and 71,325.16

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Solution

The fourth proportional to 131,756.09, 181,822.12 and 71,325.16 is: 98,428.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,756.09 : 181,822.12 = 71,325.16 : x
  2. Step 2: Convert to fraction form
    131,756.09/181,822.12 = 71,325.16/x
  3. Step 3: Cross multiply
    131,756.09x = 181,822.12 × 71,325.16
  4. Step 4: Simplify right side
    131,756.09x = 12,968,491,167.67
  5. Step 5: Solve for x
    x = 12,968,491,167.67/131,756.09
  6. Step 6: Final answer
    x = 98,428.02

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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.