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Finding the Fourth Proportional to 115,066.76, 158,782.02 and 64,075.64

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Solution

The fourth proportional to 115,066.76, 158,782.02 and 64,075.64 is: 88,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,066.76 : 158,782.02 = 64,075.64 : x
  2. Step 2: Convert to fraction form
    115,066.76/158,782.02 = 64,075.64/x
  3. Step 3: Cross multiply
    115,066.76x = 158,782.02 × 64,075.64
  4. Step 4: Simplify right side
    115,066.76x = 10,174,059,551.99
  5. Step 5: Solve for x
    x = 10,174,059,551.99/115,066.76
  6. Step 6: Final answer
    x = 88,418.75

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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.