Home / 112,532.76-168,715.08-68,148.72

Finding the Fourth Proportional to 112,532.76, 168,715.08 and 68,148.72

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Solution

The fourth proportional to 112,532.76, 168,715.08 and 68,148.72 is: 102,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,532.76 : 168,715.08 = 68,148.72 : x
  2. Step 2: Convert to fraction form
    112,532.76/168,715.08 = 68,148.72/x
  3. Step 3: Cross multiply
    112,532.76x = 168,715.08 × 68,148.72
  4. Step 4: Simplify right side
    112,532.76x = 11,497,716,746.70
  5. Step 5: Solve for x
    x = 11,497,716,746.70/112,532.76
  6. Step 6: Final answer
    x = 102,172.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.