Home / 112,857.63-155,742.39-61,873.17

Finding the Fourth Proportional to 112,857.63, 155,742.39 and 61,873.17

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Solution

The fourth proportional to 112,857.63, 155,742.39 and 61,873.17 is: 85,384.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,857.63 : 155,742.39 = 61,873.17 : x
  2. Step 2: Convert to fraction form
    112,857.63/155,742.39 = 61,873.17/x
  3. Step 3: Cross multiply
    112,857.63x = 155,742.39 × 61,873.17
  4. Step 4: Simplify right side
    112,857.63x = 9,636,275,372.68
  5. Step 5: Solve for x
    x = 9,636,275,372.68/112,857.63
  6. Step 6: Final answer
    x = 85,384.35

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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.