Home / 109,308.80-150,844.64-61,566.88

Finding the Fourth Proportional to 109,308.80, 150,844.64 and 61,566.88

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Solution

The fourth proportional to 109,308.80, 150,844.64 and 61,566.88 is: 84,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,308.80 : 150,844.64 = 61,566.88 : x
  2. Step 2: Convert to fraction form
    109,308.80/150,844.64 = 61,566.88/x
  3. Step 3: Cross multiply
    109,308.80x = 150,844.64 × 61,566.88
  4. Step 4: Simplify right side
    109,308.80x = 9,287,033,849.52
  5. Step 5: Solve for x
    x = 9,287,033,849.52/109,308.80
  6. Step 6: Final answer
    x = 84,961.45

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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.