Home / 117,455.11-162,088.15-63,740.12

Finding the Fourth Proportional to 117,455.11, 162,088.15 and 63,740.12

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Solution

The fourth proportional to 117,455.11, 162,088.15 and 63,740.12 is: 87,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,455.11 : 162,088.15 = 63,740.12 : x
  2. Step 2: Convert to fraction form
    117,455.11/162,088.15 = 63,740.12/x
  3. Step 3: Cross multiply
    117,455.11x = 162,088.15 × 63,740.12
  4. Step 4: Simplify right side
    117,455.11x = 10,331,518,131.58
  5. Step 5: Solve for x
    x = 10,331,518,131.58/117,455.11
  6. Step 6: Final answer
    x = 87,961.42

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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.