Home / 102,492.58-141,439.97-57,169.40

Finding the Fourth Proportional to 102,492.58, 141,439.97 and 57,169.40

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Solution

The fourth proportional to 102,492.58, 141,439.97 and 57,169.40 is: 78,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,492.58 : 141,439.97 = 57,169.40 : x
  2. Step 2: Convert to fraction form
    102,492.58/141,439.97 = 57,169.40/x
  3. Step 3: Cross multiply
    102,492.58x = 141,439.97 × 57,169.40
  4. Step 4: Simplify right side
    102,492.58x = 8,086,037,656.64
  5. Step 5: Solve for x
    x = 8,086,037,656.64/102,492.58
  6. Step 6: Final answer
    x = 78,893.89

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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.