Home / 153,148.11-211,313.43-89,473.61

Finding the Fourth Proportional to 153,148.11, 211,313.43 and 89,473.61

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Solution

The fourth proportional to 153,148.11, 211,313.43 and 89,473.61 is: 123,455.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,148.11 : 211,313.43 = 89,473.61 : x
  2. Step 2: Convert to fraction form
    153,148.11/211,313.43 = 89,473.61/x
  3. Step 3: Cross multiply
    153,148.11x = 211,313.43 × 89,473.61
  4. Step 4: Simplify right side
    153,148.11x = 18,906,975,159.44
  5. Step 5: Solve for x
    x = 18,906,975,159.44/153,148.11
  6. Step 6: Final answer
    x = 123,455.49

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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.