Home / 115,681.05-173,564.78-45,609.21

Finding the Fourth Proportional to 115,681.05, 173,564.78 and 45,609.21

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Solution

The fourth proportional to 115,681.05, 173,564.78 and 45,609.21 is: 68,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,681.05 : 173,564.78 = 45,609.21 : x
  2. Step 2: Convert to fraction form
    115,681.05/173,564.78 = 45,609.21/x
  3. Step 3: Cross multiply
    115,681.05x = 173,564.78 × 45,609.21
  4. Step 4: Simplify right side
    115,681.05x = 7,916,152,271.58
  5. Step 5: Solve for x
    x = 7,916,152,271.58/115,681.05
  6. Step 6: Final answer
    x = 68,430.85

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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.