Home / 158,953.77-219,356.02-87,333.61

Finding the Fourth Proportional to 158,953.77, 219,356.02 and 87,333.61

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Solution

The fourth proportional to 158,953.77, 219,356.02 and 87,333.61 is: 120,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,953.77 : 219,356.02 = 87,333.61 : x
  2. Step 2: Convert to fraction form
    158,953.77/219,356.02 = 87,333.61/x
  3. Step 3: Cross multiply
    158,953.77x = 219,356.02 × 87,333.61
  4. Step 4: Simplify right side
    158,953.77x = 19,157,153,101.83
  5. Step 5: Solve for x
    x = 19,157,153,101.83/158,953.77
  6. Step 6: Final answer
    x = 120,520.28

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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.