Home / 112,628.10-168,942.15-70,637.70

Finding the Fourth Proportional to 112,628.10, 168,942.15 and 70,637.70

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Solution

The fourth proportional to 112,628.10, 168,942.15 and 70,637.70 is: 105,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,628.10 : 168,942.15 = 70,637.70 : x
  2. Step 2: Convert to fraction form
    112,628.10/168,942.15 = 70,637.70/x
  3. Step 3: Cross multiply
    112,628.10x = 168,942.15 × 70,637.70
  4. Step 4: Simplify right side
    112,628.10x = 11,933,684,909.06
  5. Step 5: Solve for x
    x = 11,933,684,909.06/112,628.10
  6. Step 6: Final answer
    x = 105,956.55

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1.5x scale

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.