Home / 112,819.74-155,685.90-67,522.68

Finding the Fourth Proportional to 112,819.74, 155,685.90 and 67,522.68

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Solution

The fourth proportional to 112,819.74, 155,685.90 and 67,522.68 is: 93,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,819.74 : 155,685.90 = 67,522.68 : x
  2. Step 2: Convert to fraction form
    112,819.74/155,685.90 = 67,522.68/x
  3. Step 3: Cross multiply
    112,819.74x = 155,685.90 × 67,522.68
  4. Step 4: Simplify right side
    112,819.74x = 10,512,329,206.21
  5. Step 5: Solve for x
    x = 10,512,329,206.21/112,819.74
  6. Step 6: Final answer
    x = 93,178.10

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1.5x scale

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.