Home / 157,946.03-217,965.54-86,326.04

Finding the Fourth Proportional to 157,946.03, 217,965.54 and 86,326.04

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Solution

The fourth proportional to 157,946.03, 217,965.54 and 86,326.04 is: 119,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,946.03 : 217,965.54 = 86,326.04 : x
  2. Step 2: Convert to fraction form
    157,946.03/217,965.54 = 86,326.04/x
  3. Step 3: Cross multiply
    157,946.03x = 217,965.54 × 86,326.04
  4. Step 4: Simplify right side
    157,946.03x = 18,816,100,834.83
  5. Step 5: Solve for x
    x = 18,816,100,834.83/157,946.03
  6. Step 6: Final answer
    x = 119,129.94

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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.