Home / 111,211.66-153,473.07-63,464.50

Finding the Fourth Proportional to 111,211.66, 153,473.07 and 63,464.50

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Solution

The fourth proportional to 111,211.66, 153,473.07 and 63,464.50 is: 87,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211.66 : 153,473.07 = 63,464.50 : x
  2. Step 2: Convert to fraction form
    111,211.66/153,473.07 = 63,464.50/x
  3. Step 3: Cross multiply
    111,211.66x = 153,473.07 × 63,464.50
  4. Step 4: Simplify right side
    111,211.66x = 9,740,091,651.02
  5. Step 5: Solve for x
    x = 9,740,091,651.02/111,211.66
  6. Step 6: Final answer
    x = 87,581.57

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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.