Home / 159,125.16-219,696.39-98,784.47

Finding the Fourth Proportional to 159,125.16, 219,696.39 and 98,784.47

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Solution

The fourth proportional to 159,125.16, 219,696.39 and 98,784.47 is: 136,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,125.16 : 219,696.39 = 98,784.47 : x
  2. Step 2: Convert to fraction form
    159,125.16/219,696.39 = 98,784.47/x
  3. Step 3: Cross multiply
    159,125.16x = 219,696.39 × 98,784.47
  4. Step 4: Simplify right side
    159,125.16x = 21,702,589,978.14
  5. Step 5: Solve for x
    x = 21,702,589,978.14/159,125.16
  6. Step 6: Final answer
    x = 136,386.91

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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.