Home / 157,821.41-217,804.67-89,838.42

Finding the Fourth Proportional to 157,821.41, 217,804.67 and 89,838.42

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Solution

The fourth proportional to 157,821.41, 217,804.67 and 89,838.42 is: 123,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,821.41 : 217,804.67 = 89,838.42 : x
  2. Step 2: Convert to fraction form
    157,821.41/217,804.67 = 89,838.42/x
  3. Step 3: Cross multiply
    157,821.41x = 217,804.67 × 89,838.42
  4. Step 4: Simplify right side
    157,821.41x = 19,567,227,421.42
  5. Step 5: Solve for x
    x = 19,567,227,421.42/157,821.41
  6. Step 6: Final answer
    x = 123,983.35

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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.