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Finding the Fourth Proportional to 115,075.84, 158,811.84 and 69,757.76

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Solution

The fourth proportional to 115,075.84, 158,811.84 and 69,757.76 is: 96,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,075.84 : 158,811.84 = 69,757.76 : x
  2. Step 2: Convert to fraction form
    115,075.84/158,811.84 = 69,757.76/x
  3. Step 3: Cross multiply
    115,075.84x = 158,811.84 × 69,757.76
  4. Step 4: Simplify right side
    115,075.84x = 11,078,358,219.88
  5. Step 5: Solve for x
    x = 11,078,358,219.88/115,075.84
  6. Step 6: Final answer
    x = 96,270.06

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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.