Home / 117,117.06-161,620.18-63,400.89

Finding the Fourth Proportional to 117,117.06, 161,620.18 and 63,400.89

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Solution

The fourth proportional to 117,117.06, 161,620.18 and 63,400.89 is: 87,492.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.06 : 161,620.18 = 63,400.89 : x
  2. Step 2: Convert to fraction form
    117,117.06/161,620.18 = 63,400.89/x
  3. Step 3: Cross multiply
    117,117.06x = 161,620.18 × 63,400.89
  4. Step 4: Simplify right side
    117,117.06x = 10,246,863,253.96
  5. Step 5: Solve for x
    x = 10,246,863,253.96/117,117.06
  6. Step 6: Final answer
    x = 87,492.49

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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.