Home / 115,820.28-159,804.42-70,497.72

Finding the Fourth Proportional to 115,820.28, 159,804.42 and 70,497.72

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Solution

The fourth proportional to 115,820.28, 159,804.42 and 70,497.72 is: 97,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,820.28 : 159,804.42 = 70,497.72 : x
  2. Step 2: Convert to fraction form
    115,820.28/159,804.42 = 70,497.72/x
  3. Step 3: Cross multiply
    115,820.28x = 159,804.42 × 70,497.72
  4. Step 4: Simplify right side
    115,820.28x = 11,265,847,255.92
  5. Step 5: Solve for x
    x = 11,265,847,255.92/115,820.28
  6. Step 6: Final answer
    x = 97,270.07

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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.