Home / 117,318.32-175,977.38-42,420.90

Finding the Fourth Proportional to 117,318.32, 175,977.38 and 42,420.90

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Solution

The fourth proportional to 117,318.32, 175,977.38 and 42,420.90 is: 63,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,318.32 : 175,977.38 = 42,420.90 : x
  2. Step 2: Convert to fraction form
    117,318.32/175,977.38 = 42,420.90/x
  3. Step 3: Cross multiply
    117,318.32x = 175,977.38 × 42,420.90
  4. Step 4: Simplify right side
    117,318.32x = 7,465,118,839.24
  5. Step 5: Solve for x
    x = 7,465,118,839.24/117,318.32
  6. Step 6: Final answer
    x = 63,631.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.