Home / 113,013.13-155,919.41-64,580.26

Finding the Fourth Proportional to 113,013.13, 155,919.41 and 64,580.26

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Solution

The fourth proportional to 113,013.13, 155,919.41 and 64,580.26 is: 89,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,013.13 : 155,919.41 = 64,580.26 : x
  2. Step 2: Convert to fraction form
    113,013.13/155,919.41 = 64,580.26/x
  3. Step 3: Cross multiply
    113,013.13x = 155,919.41 × 64,580.26
  4. Step 4: Simplify right side
    113,013.13x = 10,069,315,713.95
  5. Step 5: Solve for x
    x = 10,069,315,713.95/113,013.13
  6. Step 6: Final answer
    x = 89,098.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.