Home / 157,897.45-217,874.33-89,917.21

Finding the Fourth Proportional to 157,897.45, 217,874.33 and 89,917.21

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Solution

The fourth proportional to 157,897.45, 217,874.33 and 89,917.21 is: 124,071.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,897.45 : 217,874.33 = 89,917.21 : x
  2. Step 2: Convert to fraction form
    157,897.45/217,874.33 = 89,917.21/x
  3. Step 3: Cross multiply
    157,897.45x = 217,874.33 × 89,917.21
  4. Step 4: Simplify right side
    157,897.45x = 19,590,651,434.63
  5. Step 5: Solve for x
    x = 19,590,651,434.63/157,897.45
  6. Step 6: Final answer
    x = 124,071.99

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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.