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Finding the Fourth Proportional to 162,858.39, 243,926.69 and 125,140.83

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Solution

The fourth proportional to 162,858.39, 243,926.69 and 125,140.83 is: 187,433.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,858.39 : 243,926.69 = 125,140.83 : x
  2. Step 2: Convert to fraction form
    162,858.39/243,926.69 = 125,140.83/x
  3. Step 3: Cross multiply
    162,858.39x = 243,926.69 × 125,140.83
  4. Step 4: Simplify right side
    162,858.39x = 30,525,187,820.05
  5. Step 5: Solve for x
    x = 30,525,187,820.05/162,858.39
  6. Step 6: Final answer
    x = 187,433.93

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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.