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Finding the Fourth Proportional to 133,666.65, 184,459.95 and 79,964.30

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Solution

The fourth proportional to 133,666.65, 184,459.95 and 79,964.30 is: 110,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,666.65 : 184,459.95 = 79,964.30 : x
  2. Step 2: Convert to fraction form
    133,666.65/184,459.95 = 79,964.30/x
  3. Step 3: Cross multiply
    133,666.65x = 184,459.95 × 79,964.30
  4. Step 4: Simplify right side
    133,666.65x = 14,750,211,240.93
  5. Step 5: Solve for x
    x = 14,750,211,240.93/133,666.65
  6. Step 6: Final answer
    x = 110,350.72

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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.