Home / 153,630.22-211,889.52-99,932.38

Finding the Fourth Proportional to 153,630.22, 211,889.52 and 99,932.38

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Solution

The fourth proportional to 153,630.22, 211,889.52 and 99,932.38 is: 137,828.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,630.22 : 211,889.52 = 99,932.38 : x
  2. Step 2: Convert to fraction form
    153,630.22/211,889.52 = 99,932.38/x
  3. Step 3: Cross multiply
    153,630.22x = 211,889.52 × 99,932.38
  4. Step 4: Simplify right side
    153,630.22x = 21,174,624,030.66
  5. Step 5: Solve for x
    x = 21,174,624,030.66/153,630.22
  6. Step 6: Final answer
    x = 137,828.51

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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.