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Finding the Fourth Proportional to 134,470.40, 201,851.40 and 84,606.80

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Solution

The fourth proportional to 134,470.40, 201,851.40 and 84,606.80 is: 127,001.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,470.40 : 201,851.40 = 84,606.80 : x
  2. Step 2: Convert to fraction form
    134,470.40/201,851.40 = 84,606.80/x
  3. Step 3: Cross multiply
    134,470.40x = 201,851.40 × 84,606.80
  4. Step 4: Simplify right side
    134,470.40x = 17,078,001,029.52
  5. Step 5: Solve for x
    x = 17,078,001,029.52/134,470.40
  6. Step 6: Final answer
    x = 127,001.94

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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.