Home / 171,885.12-237,148.28-100,214.40

Finding the Fourth Proportional to 171,885.12, 237,148.28 and 100,214.40

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Solution

The fourth proportional to 171,885.12, 237,148.28 and 100,214.40 is: 138,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,885.12 : 237,148.28 = 100,214.40 : x
  2. Step 2: Convert to fraction form
    171,885.12/237,148.28 = 100,214.40/x
  3. Step 3: Cross multiply
    171,885.12x = 237,148.28 × 100,214.40
  4. Step 4: Simplify right side
    171,885.12x = 23,765,672,591.23
  5. Step 5: Solve for x
    x = 23,765,672,591.23/171,885.12
  6. Step 6: Final answer
    x = 138,264.86

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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.