Home / 158,733.36-219,051.40-87,114.56

Finding the Fourth Proportional to 158,733.36, 219,051.40 and 87,114.56

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Solution

The fourth proportional to 158,733.36, 219,051.40 and 87,114.56 is: 120,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,733.36 : 219,051.40 = 87,114.56 : x
  2. Step 2: Convert to fraction form
    158,733.36/219,051.40 = 87,114.56/x
  3. Step 3: Cross multiply
    158,733.36x = 219,051.40 × 87,114.56
  4. Step 4: Simplify right side
    158,733.36x = 19,082,566,328.38
  5. Step 5: Solve for x
    x = 19,082,566,328.38/158,733.36
  6. Step 6: Final answer
    x = 120,217.74

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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.