Home / 115,414.74-159,271.68-64,424.52

Finding the Fourth Proportional to 115,414.74, 159,271.68 and 64,424.52

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Solution

The fourth proportional to 115,414.74, 159,271.68 and 64,424.52 is: 88,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,414.74 : 159,271.68 = 64,424.52 : x
  2. Step 2: Convert to fraction form
    115,414.74/159,271.68 = 64,424.52/x
  3. Step 3: Cross multiply
    115,414.74x = 159,271.68 × 64,424.52
  4. Step 4: Simplify right side
    115,414.74x = 10,261,001,533.59
  5. Step 5: Solve for x
    x = 10,261,001,533.59/115,414.74
  6. Step 6: Final answer
    x = 88,905.47

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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.