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Finding the Fourth Proportional to 115,059.84, 158,780.70 and 64,758.84

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Solution

The fourth proportional to 115,059.84, 158,780.70 and 64,758.84 is: 89,366.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,059.84 : 158,780.70 = 64,758.84 : x
  2. Step 2: Convert to fraction form
    115,059.84/158,780.70 = 64,758.84/x
  3. Step 3: Cross multiply
    115,059.84x = 158,780.70 × 64,758.84
  4. Step 4: Simplify right side
    115,059.84x = 10,282,453,946.39
  5. Step 5: Solve for x
    x = 10,282,453,946.39/115,059.84
  6. Step 6: Final answer
    x = 89,366.14

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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.