Home / 158,832.32-219,188.84-87,216.91

Finding the Fourth Proportional to 158,832.32, 219,188.84 and 87,216.91

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Solution

The fourth proportional to 158,832.32, 219,188.84 and 87,216.91 is: 120,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,832.32 : 219,188.84 = 87,216.91 : x
  2. Step 2: Convert to fraction form
    158,832.32/219,188.84 = 87,216.91/x
  3. Step 3: Cross multiply
    158,832.32x = 219,188.84 × 87,216.91
  4. Step 4: Simplify right side
    158,832.32x = 19,116,972,347.23
  5. Step 5: Solve for x
    x = 19,116,972,347.23/158,832.32
  6. Step 6: Final answer
    x = 120,359.46

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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.