Home / 151,913.01-209,633.58-87,377.35

Finding the Fourth Proportional to 151,913.01, 209,633.58 and 87,377.35

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Solution

The fourth proportional to 151,913.01, 209,633.58 and 87,377.35 is: 120,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,913.01 : 209,633.58 = 87,377.35 : x
  2. Step 2: Convert to fraction form
    151,913.01/209,633.58 = 87,377.35/x
  3. Step 3: Cross multiply
    151,913.01x = 209,633.58 × 87,377.35
  4. Step 4: Simplify right side
    151,913.01x = 18,317,226,691.41
  5. Step 5: Solve for x
    x = 18,317,226,691.41/151,913.01
  6. Step 6: Final answer
    x = 120,577.08

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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.