Home / 111,043.72-153,244.30-63,289.36

Finding the Fourth Proportional to 111,043.72, 153,244.30 and 63,289.36

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Solution

The fourth proportional to 111,043.72, 153,244.30 and 63,289.36 is: 87,341.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,043.72 : 153,244.30 = 63,289.36 : x
  2. Step 2: Convert to fraction form
    111,043.72/153,244.30 = 63,289.36/x
  3. Step 3: Cross multiply
    111,043.72x = 153,244.30 × 63,289.36
  4. Step 4: Simplify right side
    111,043.72x = 9,698,733,670.65
  5. Step 5: Solve for x
    x = 9,698,733,670.65/111,043.72
  6. Step 6: Final answer
    x = 87,341.58

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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.