Home / 157,991.69-236,939.34-83,071.19

Finding the Fourth Proportional to 157,991.69, 236,939.34 and 83,071.19

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Solution

The fourth proportional to 157,991.69, 236,939.34 and 83,071.19 is: 124,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,991.69 : 236,939.34 = 83,071.19 : x
  2. Step 2: Convert to fraction form
    157,991.69/236,939.34 = 83,071.19/x
  3. Step 3: Cross multiply
    157,991.69x = 236,939.34 × 83,071.19
  4. Step 4: Simplify right side
    157,991.69x = 19,682,832,931.61
  5. Step 5: Solve for x
    x = 19,682,832,931.61/157,991.69
  6. Step 6: Final answer
    x = 124,581.44

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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.