Home / 109,515.34-151,163.48-64,203.13

Finding the Fourth Proportional to 109,515.34, 151,163.48 and 64,203.13

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Solution

The fourth proportional to 109,515.34, 151,163.48 and 64,203.13 is: 88,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,515.34 : 151,163.48 = 64,203.13 : x
  2. Step 2: Convert to fraction form
    109,515.34/151,163.48 = 64,203.13/x
  3. Step 3: Cross multiply
    109,515.34x = 151,163.48 × 64,203.13
  4. Step 4: Simplify right side
    109,515.34x = 9,705,168,907.15
  5. Step 5: Solve for x
    x = 9,705,168,907.15/109,515.34
  6. Step 6: Final answer
    x = 88,619.26

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1.5x scale

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.