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Finding the Fourth Proportional to 158,189.94, 218,075.08 and 112,789.17

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Solution

The fourth proportional to 158,189.94, 218,075.08 and 112,789.17 is: 155,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,189.94 : 218,075.08 = 112,789.17 : x
  2. Step 2: Convert to fraction form
    158,189.94/218,075.08 = 112,789.17/x
  3. Step 3: Cross multiply
    158,189.94x = 218,075.08 × 112,789.17
  4. Step 4: Simplify right side
    158,189.94x = 24,596,507,270.88
  5. Step 5: Solve for x
    x = 24,596,507,270.88/158,189.94
  6. Step 6: Final answer
    x = 155,487.18

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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.