Home / 158,773.68-219,095.64-87,142.32

Finding the Fourth Proportional to 158,773.68, 219,095.64 and 87,142.32

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Solution

The fourth proportional to 158,773.68, 219,095.64 and 87,142.32 is: 120,249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,773.68 : 219,095.64 = 87,142.32 : x
  2. Step 2: Convert to fraction form
    158,773.68/219,095.64 = 87,142.32/x
  3. Step 3: Cross multiply
    158,773.68x = 219,095.64 × 87,142.32
  4. Step 4: Simplify right side
    158,773.68x = 19,092,502,371.48
  5. Step 5: Solve for x
    x = 19,092,502,371.48/158,773.68
  6. Step 6: Final answer
    x = 120,249.79

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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.