Home / 115,565.43-159,529.41-70,257.88

Finding the Fourth Proportional to 115,565.43, 159,529.41 and 70,257.88

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Solution

The fourth proportional to 115,565.43, 159,529.41 and 70,257.88 is: 96,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,565.43 : 159,529.41 = 70,257.88 : x
  2. Step 2: Convert to fraction form
    115,565.43/159,529.41 = 70,257.88/x
  3. Step 3: Cross multiply
    115,565.43x = 159,529.41 × 70,257.88
  4. Step 4: Simplify right side
    115,565.43x = 11,208,198,541.26
  5. Step 5: Solve for x
    x = 11,208,198,541.26/115,565.43
  6. Step 6: Final answer
    x = 96,985.74

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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.