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Finding the Fourth Proportional to 157,605.70, 236,412.72 and 45,281.38

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Solution

The fourth proportional to 157,605.70, 236,412.72 and 45,281.38 is: 67,923.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,605.70 : 236,412.72 = 45,281.38 : x
  2. Step 2: Convert to fraction form
    157,605.70/236,412.72 = 45,281.38/x
  3. Step 3: Cross multiply
    157,605.70x = 236,412.72 × 45,281.38
  4. Step 4: Simplify right side
    157,605.70x = 10,705,094,211.15
  5. Step 5: Solve for x
    x = 10,705,094,211.15/157,605.70
  6. Step 6: Final answer
    x = 67,923.27

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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.