Home / 115,385.51-159,240.94-63,712.70

Finding the Fourth Proportional to 115,385.51, 159,240.94 and 63,712.70

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Solution

The fourth proportional to 115,385.51, 159,240.94 and 63,712.70 is: 87,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,385.51 : 159,240.94 = 63,712.70 : x
  2. Step 2: Convert to fraction form
    115,385.51/159,240.94 = 63,712.70/x
  3. Step 3: Cross multiply
    115,385.51x = 159,240.94 × 63,712.70
  4. Step 4: Simplify right side
    115,385.51x = 10,145,670,327.47
  5. Step 5: Solve for x
    x = 10,145,670,327.47/115,385.51
  6. Step 6: Final answer
    x = 87,928.46

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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.