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Finding the Fourth Proportional to 115,451.84, 159,264.84 and 70,117.76

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Solution

The fourth proportional to 115,451.84, 159,264.84 and 70,117.76 is: 96,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,451.84 : 159,264.84 = 70,117.76 : x
  2. Step 2: Convert to fraction form
    115,451.84/159,264.84 = 70,117.76/x
  3. Step 3: Cross multiply
    115,451.84x = 159,264.84 × 70,117.76
  4. Step 4: Simplify right side
    115,451.84x = 11,167,293,827.56
  5. Step 5: Solve for x
    x = 11,167,293,827.56/115,451.84
  6. Step 6: Final answer
    x = 96,726.86

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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.