Home / 152,742.54-210,785.85-84,759.78

Finding the Fourth Proportional to 152,742.54, 210,785.85 and 84,759.78

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Solution

The fourth proportional to 152,742.54, 210,785.85 and 84,759.78 is: 116,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,742.54 : 210,785.85 = 84,759.78 : x
  2. Step 2: Convert to fraction form
    152,742.54/210,785.85 = 84,759.78/x
  3. Step 3: Cross multiply
    152,742.54x = 210,785.85 × 84,759.78
  4. Step 4: Simplify right side
    152,742.54x = 17,866,162,273.11
  5. Step 5: Solve for x
    x = 17,866,162,273.11/152,742.54
  6. Step 6: Final answer
    x = 116,969.13

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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.