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Finding the Fourth Proportional to 157,459.20, 236,117.72 and 45,113.72

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Solution

The fourth proportional to 157,459.20, 236,117.72 and 45,113.72 is: 67,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,459.20 : 236,117.72 = 45,113.72 : x
  2. Step 2: Convert to fraction form
    157,459.20/236,117.72 = 45,113.72/x
  3. Step 3: Cross multiply
    157,459.20x = 236,117.72 × 45,113.72
  4. Step 4: Simplify right side
    157,459.20x = 10,652,147,300.96
  5. Step 5: Solve for x
    x = 10,652,147,300.96/157,459.20
  6. Step 6: Final answer
    x = 67,650.21

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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.