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Finding the Fourth Proportional to 157,460.70, 236,119.97 and 45,115.21

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Solution

The fourth proportional to 157,460.70, 236,119.97 and 45,115.21 is: 67,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,460.70 : 236,119.97 = 45,115.21 : x
  2. Step 2: Convert to fraction form
    157,460.70/236,119.97 = 45,115.21/x
  3. Step 3: Cross multiply
    157,460.70x = 236,119.97 × 45,115.21
  4. Step 4: Simplify right side
    157,460.70x = 10,652,602,031.74
  5. Step 5: Solve for x
    x = 10,652,602,031.74/157,460.70
  6. Step 6: Final answer
    x = 67,652.45

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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.