Home / 171,886.12-237,149.66-100,215.40

Finding the Fourth Proportional to 171,886.12, 237,149.66 and 100,215.40

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Solution

The fourth proportional to 171,886.12, 237,149.66 and 100,215.40 is: 138,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,886.12 : 237,149.66 = 100,215.40 : x
  2. Step 2: Convert to fraction form
    171,886.12/237,149.66 = 100,215.40/x
  3. Step 3: Cross multiply
    171,886.12x = 237,149.66 × 100,215.40
  4. Step 4: Simplify right side
    171,886.12x = 23,766,048,036.76
  5. Step 5: Solve for x
    x = 23,766,048,036.76/171,886.12
  6. Step 6: Final answer
    x = 138,266.24

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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.