Home / 158,814.86-219,164.94-87,199.52

Finding the Fourth Proportional to 158,814.86, 219,164.94 and 87,199.52

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Solution

The fourth proportional to 158,814.86, 219,164.94 and 87,199.52 is: 120,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,814.86 : 219,164.94 = 87,199.52 : x
  2. Step 2: Convert to fraction form
    158,814.86/219,164.94 = 87,199.52/x
  3. Step 3: Cross multiply
    158,814.86x = 219,164.94 × 87,199.52
  4. Step 4: Simplify right side
    158,814.86x = 19,111,076,473.00
  5. Step 5: Solve for x
    x = 19,111,076,473.00/158,814.86
  6. Step 6: Final answer
    x = 120,335.57

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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.