Home / 112,733.69-155,677.07-84,390.17

Finding the Fourth Proportional to 112,733.69, 155,677.07 and 84,390.17

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Solution

The fourth proportional to 112,733.69, 155,677.07 and 84,390.17 is: 116,536.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,733.69 : 155,677.07 = 84,390.17 : x
  2. Step 2: Convert to fraction form
    112,733.69/155,677.07 = 84,390.17/x
  3. Step 3: Cross multiply
    112,733.69x = 155,677.07 × 84,390.17
  4. Step 4: Simplify right side
    112,733.69x = 13,137,613,834.99
  5. Step 5: Solve for x
    x = 13,137,613,834.99/112,733.69
  6. Step 6: Final answer
    x = 116,536.72

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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.