Home / 159,371.16-219,940.28-90,465.47

Finding the Fourth Proportional to 159,371.16, 219,940.28 and 90,465.47

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Solution

The fourth proportional to 159,371.16, 219,940.28 and 90,465.47 is: 124,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,371.16 : 219,940.28 = 90,465.47 : x
  2. Step 2: Convert to fraction form
    159,371.16/219,940.28 = 90,465.47/x
  3. Step 3: Cross multiply
    159,371.16x = 219,940.28 × 90,465.47
  4. Step 4: Simplify right side
    159,371.16x = 19,897,000,802.13
  5. Step 5: Solve for x
    x = 19,897,000,802.13/159,371.16
  6. Step 6: Final answer
    x = 124,846.93

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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.