Home / 115,417.26-159,283.80-64,440.09

Finding the Fourth Proportional to 115,417.26, 159,283.80 and 64,440.09

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Solution

The fourth proportional to 115,417.26, 159,283.80 and 64,440.09 is: 88,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,417.26 : 159,283.80 = 64,440.09 : x
  2. Step 2: Convert to fraction form
    115,417.26/159,283.80 = 64,440.09/x
  3. Step 3: Cross multiply
    115,417.26x = 159,283.80 × 64,440.09
  4. Step 4: Simplify right side
    115,417.26x = 10,264,262,407.54
  5. Step 5: Solve for x
    x = 10,264,262,407.54/115,417.26
  6. Step 6: Final answer
    x = 88,931.78

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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.