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Finding the Fourth Proportional to 134,881.70, 202,322.55 and 85,018.10

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Solution

The fourth proportional to 134,881.70, 202,322.55 and 85,018.10 is: 127,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,881.70 : 202,322.55 = 85,018.10 : x
  2. Step 2: Convert to fraction form
    134,881.70/202,322.55 = 85,018.10/x
  3. Step 3: Cross multiply
    134,881.70x = 202,322.55 × 85,018.10
  4. Step 4: Simplify right side
    134,881.70x = 17,201,078,788.16
  5. Step 5: Solve for x
    x = 17,201,078,788.16/134,881.70
  6. Step 6: Final answer
    x = 127,527.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.