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Finding the Fourth Proportional to 133,735.68, 200,681.28 and 105,482.88

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Solution

The fourth proportional to 133,735.68, 200,681.28 and 105,482.88 is: 158,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,735.68 : 200,681.28 = 105,482.88 : x
  2. Step 2: Convert to fraction form
    133,735.68/200,681.28 = 105,482.88/x
  3. Step 3: Cross multiply
    133,735.68x = 200,681.28 × 105,482.88
  4. Step 4: Simplify right side
    133,735.68x = 21,168,439,376.49
  5. Step 5: Solve for x
    x = 21,168,439,376.49/133,735.68
  6. Step 6: Final answer
    x = 158,285.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.