Home / 103,610.13-155,423.67-43,655.94

Finding the Fourth Proportional to 103,610.13, 155,423.67 and 43,655.94

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Solution

The fourth proportional to 103,610.13, 155,423.67 and 43,655.94 is: 65,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,610.13 : 155,423.67 = 43,655.94 : x
  2. Step 2: Convert to fraction form
    103,610.13/155,423.67 = 43,655.94/x
  3. Step 3: Cross multiply
    103,610.13x = 155,423.67 × 43,655.94
  4. Step 4: Simplify right side
    103,610.13x = 6,785,166,412.10
  5. Step 5: Solve for x
    x = 6,785,166,412.10/103,610.13
  6. Step 6: Final answer
    x = 65,487.48

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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.