Home / 239,070.69-329,916.78-131,640.93

Finding the Fourth Proportional to 239,070.69, 329,916.78 and 131,640.93

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Solution

The fourth proportional to 239,070.69, 329,916.78 and 131,640.93 is: 181,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,070.69 : 329,916.78 = 131,640.93 : x
  2. Step 2: Convert to fraction form
    239,070.69/329,916.78 = 131,640.93/x
  3. Step 3: Cross multiply
    239,070.69x = 329,916.78 × 131,640.93
  4. Step 4: Simplify right side
    239,070.69x = 43,430,551,741.81
  5. Step 5: Solve for x
    x = 43,430,551,741.81/239,070.69
  6. Step 6: Final answer
    x = 181,664.06

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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.