Home / 109,154.32-150,629.70-66,159.26

Finding the Fourth Proportional to 109,154.32, 150,629.70 and 66,159.26

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Solution

The fourth proportional to 109,154.32, 150,629.70 and 66,159.26 is: 91,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,154.32 : 150,629.70 = 66,159.26 : x
  2. Step 2: Convert to fraction form
    109,154.32/150,629.70 = 66,159.26/x
  3. Step 3: Cross multiply
    109,154.32x = 150,629.70 × 66,159.26
  4. Step 4: Simplify right side
    109,154.32x = 9,965,549,486.02
  5. Step 5: Solve for x
    x = 9,965,549,486.02/109,154.32
  6. Step 6: Final answer
    x = 91,297.80

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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.