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Finding the Fourth Proportional to 121,657.58, 182,371.51 and 58,513.42

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Solution

The fourth proportional to 121,657.58, 182,371.51 and 58,513.42 is: 87,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,657.58 : 182,371.51 = 58,513.42 : x
  2. Step 2: Convert to fraction form
    121,657.58/182,371.51 = 58,513.42/x
  3. Step 3: Cross multiply
    121,657.58x = 182,371.51 × 58,513.42
  4. Step 4: Simplify right side
    121,657.58x = 10,671,180,377.88
  5. Step 5: Solve for x
    x = 10,671,180,377.88/121,657.58
  6. Step 6: Final answer
    x = 87,714.89

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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.