Home / 146,387.58-202,003.65-81,856.50

Finding the Fourth Proportional to 146,387.58, 202,003.65 and 81,856.50

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Solution

The fourth proportional to 146,387.58, 202,003.65 and 81,856.50 is: 112,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,387.58 : 202,003.65 = 81,856.50 : x
  2. Step 2: Convert to fraction form
    146,387.58/202,003.65 = 81,856.50/x
  3. Step 3: Cross multiply
    146,387.58x = 202,003.65 × 81,856.50
  4. Step 4: Simplify right side
    146,387.58x = 16,535,311,776.23
  5. Step 5: Solve for x
    x = 16,535,311,776.23/146,387.58
  6. Step 6: Final answer
    x = 112,955.70

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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.