Home / 112,780.14-169,170.14-105,306.76

Finding the Fourth Proportional to 112,780.14, 169,170.14 and 105,306.76

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Solution

The fourth proportional to 112,780.14, 169,170.14 and 105,306.76 is: 157,960.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,780.14 : 169,170.14 = 105,306.76 : x
  2. Step 2: Convert to fraction form
    112,780.14/169,170.14 = 105,306.76/x
  3. Step 3: Cross multiply
    112,780.14x = 169,170.14 × 105,306.76
  4. Step 4: Simplify right side
    112,780.14x = 17,814,759,332.15
  5. Step 5: Solve for x
    x = 17,814,759,332.15/112,780.14
  6. Step 6: Final answer
    x = 157,960.07

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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.