Home / 153,245.72-211,536.24-89,603.96

Finding the Fourth Proportional to 153,245.72, 211,536.24 and 89,603.96

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Solution

The fourth proportional to 153,245.72, 211,536.24 and 89,603.96 is: 123,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,245.72 : 211,536.24 = 89,603.96 : x
  2. Step 2: Convert to fraction form
    153,245.72/211,536.24 = 89,603.96/x
  3. Step 3: Cross multiply
    153,245.72x = 211,536.24 × 89,603.96
  4. Step 4: Simplify right side
    153,245.72x = 18,954,484,787.51
  5. Step 5: Solve for x
    x = 18,954,484,787.51/153,245.72
  6. Step 6: Final answer
    x = 123,686.88

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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.