Home / 103,864.40-155,623.80-51,160.40

Finding the Fourth Proportional to 103,864.40, 155,623.80 and 51,160.40

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Solution

The fourth proportional to 103,864.40, 155,623.80 and 51,160.40 is: 76,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,864.40 : 155,623.80 = 51,160.40 : x
  2. Step 2: Convert to fraction form
    103,864.40/155,623.80 = 51,160.40/x
  3. Step 3: Cross multiply
    103,864.40x = 155,623.80 × 51,160.40
  4. Step 4: Simplify right side
    103,864.40x = 7,961,775,857.52
  5. Step 5: Solve for x
    x = 7,961,775,857.52/103,864.40
  6. Step 6: Final answer
    x = 76,655.48

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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.