Home / 197,772.91-296,539.75-77,686.11

Finding the Fourth Proportional to 197,772.91, 296,539.75 and 77,686.11

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Solution

The fourth proportional to 197,772.91, 296,539.75 and 77,686.11 is: 116,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,772.91 : 296,539.75 = 77,686.11 : x
  2. Step 2: Convert to fraction form
    197,772.91/296,539.75 = 77,686.11/x
  3. Step 3: Cross multiply
    197,772.91x = 296,539.75 × 77,686.11
  4. Step 4: Simplify right side
    197,772.91x = 23,037,019,637.87
  5. Step 5: Solve for x
    x = 23,037,019,637.87/197,772.91
  6. Step 6: Final answer
    x = 116,482.18

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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.