Home / 115,414.60-159,271.49-64,424.38

Finding the Fourth Proportional to 115,414.60, 159,271.49 and 64,424.38

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Solution

The fourth proportional to 115,414.60, 159,271.49 and 64,424.38 is: 88,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,414.60 : 159,271.49 = 64,424.38 : x
  2. Step 2: Convert to fraction form
    115,414.60/159,271.49 = 64,424.38/x
  3. Step 3: Cross multiply
    115,414.60x = 159,271.49 × 64,424.38
  4. Step 4: Simplify right side
    115,414.60x = 10,260,966,994.93
  5. Step 5: Solve for x
    x = 10,260,966,994.93/115,414.60
  6. Step 6: Final answer
    x = 88,905.28

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1.5x scale

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.