Home / 153,148.41-211,313.84-89,473.91

Finding the Fourth Proportional to 153,148.41, 211,313.84 and 89,473.91

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Solution

The fourth proportional to 153,148.41, 211,313.84 and 89,473.91 is: 123,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,148.41 : 211,313.84 = 89,473.91 : x
  2. Step 2: Convert to fraction form
    153,148.41/211,313.84 = 89,473.91/x
  3. Step 3: Cross multiply
    153,148.41x = 211,313.84 × 89,473.91
  4. Step 4: Simplify right side
    153,148.41x = 18,907,073,997.98
  5. Step 5: Solve for x
    x = 18,907,073,997.98/153,148.41
  6. Step 6: Final answer
    x = 123,455.89

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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.