Home / 111,077.10-153,282.60-63,345.82

Finding the Fourth Proportional to 111,077.10, 153,282.60 and 63,345.82

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Solution

The fourth proportional to 111,077.10, 153,282.60 and 63,345.82 is: 87,415.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,077.10 : 153,282.60 = 63,345.82 : x
  2. Step 2: Convert to fraction form
    111,077.10/153,282.60 = 63,345.82/x
  3. Step 3: Cross multiply
    111,077.10x = 153,282.60 × 63,345.82
  4. Step 4: Simplify right side
    111,077.10x = 9,709,811,988.73
  5. Step 5: Solve for x
    x = 9,709,811,988.73/111,077.10
  6. Step 6: Final answer
    x = 87,415.07

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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.