Home / 112,876.34-155,772.32-63,814.05

Finding the Fourth Proportional to 112,876.34, 155,772.32 and 63,814.05

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Solution

The fourth proportional to 112,876.34, 155,772.32 and 63,814.05 is: 88,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,876.34 : 155,772.32 = 63,814.05 : x
  2. Step 2: Convert to fraction form
    112,876.34/155,772.32 = 63,814.05/x
  3. Step 3: Cross multiply
    112,876.34x = 155,772.32 × 63,814.05
  4. Step 4: Simplify right side
    112,876.34x = 9,940,462,298.03
  5. Step 5: Solve for x
    x = 9,940,462,298.03/112,876.34
  6. Step 6: Final answer
    x = 88,065.07

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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.