Home / 157,688.04-217,607.91-86,067.42

Finding the Fourth Proportional to 157,688.04, 217,607.91 and 86,067.42

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Solution

The fourth proportional to 157,688.04, 217,607.91 and 86,067.42 is: 118,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,688.04 : 217,607.91 = 86,067.42 : x
  2. Step 2: Convert to fraction form
    157,688.04/217,607.91 = 86,067.42/x
  3. Step 3: Cross multiply
    157,688.04x = 217,607.91 × 86,067.42
  4. Step 4: Simplify right side
    157,688.04x = 18,728,951,385.29
  5. Step 5: Solve for x
    x = 18,728,951,385.29/157,688.04
  6. Step 6: Final answer
    x = 118,772.17

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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.