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Finding the Fourth Proportional to 99,665.88, 137,537.16 and 54,344.22

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Solution

The fourth proportional to 99,665.88, 137,537.16 and 54,344.22 is: 74,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,665.88 : 137,537.16 = 54,344.22 : x
  2. Step 2: Convert to fraction form
    99,665.88/137,537.16 = 54,344.22/x
  3. Step 3: Cross multiply
    99,665.88x = 137,537.16 × 54,344.22
  4. Step 4: Simplify right side
    99,665.88x = 7,474,349,681.22
  5. Step 5: Solve for x
    x = 7,474,349,681.22/99,665.88
  6. Step 6: Final answer
    x = 74,994.07

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1.5x scale

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.