Home / 157,826.19-217,800.12-86,206.38

Finding the Fourth Proportional to 157,826.19, 217,800.12 and 86,206.38

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Solution

The fourth proportional to 157,826.19, 217,800.12 and 86,206.38 is: 118,964.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,826.19 : 217,800.12 = 86,206.38 : x
  2. Step 2: Convert to fraction form
    157,826.19/217,800.12 = 86,206.38/x
  3. Step 3: Cross multiply
    157,826.19x = 217,800.12 × 86,206.38
  4. Step 4: Simplify right side
    157,826.19x = 18,775,759,908.77
  5. Step 5: Solve for x
    x = 18,775,759,908.77/157,826.19
  6. Step 6: Final answer
    x = 118,964.79

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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.