Home / 117,117.12-161,621.67-63,402.13

Finding the Fourth Proportional to 117,117.12, 161,621.67 and 63,402.13

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Solution

The fourth proportional to 117,117.12, 161,621.67 and 63,402.13 is: 87,494.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.12 : 161,621.67 = 63,402.13 : x
  2. Step 2: Convert to fraction form
    117,117.12/161,621.67 = 63,402.13/x
  3. Step 3: Cross multiply
    117,117.12x = 161,621.67 × 63,402.13
  4. Step 4: Simplify right side
    117,117.12x = 10,247,158,132.16
  5. Step 5: Solve for x
    x = 10,247,158,132.16/117,117.12
  6. Step 6: Final answer
    x = 87,494.96

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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.