Home / 109,261.36-163,909.28-39,139.12

Finding the Fourth Proportional to 109,261.36, 163,909.28 and 39,139.12

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Solution

The fourth proportional to 109,261.36, 163,909.28 and 39,139.12 is: 58,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,261.36 : 163,909.28 = 39,139.12 : x
  2. Step 2: Convert to fraction form
    109,261.36/163,909.28 = 39,139.12/x
  3. Step 3: Cross multiply
    109,261.36x = 163,909.28 × 39,139.12
  4. Step 4: Simplify right side
    109,261.36x = 6,415,264,979.03
  5. Step 5: Solve for x
    x = 6,415,264,979.03/109,261.36
  6. Step 6: Final answer
    x = 58,714.86

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1.5x scale

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.