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Finding the Fourth Proportional to 157,420.35, 236,130.53 and 137,737.35

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Solution

The fourth proportional to 157,420.35, 236,130.53 and 137,737.35 is: 206,606.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,420.35 : 236,130.53 = 137,737.35 : x
  2. Step 2: Convert to fraction form
    157,420.35/236,130.53 = 137,737.35/x
  3. Step 3: Cross multiply
    157,420.35x = 236,130.53 × 137,737.35
  4. Step 4: Simplify right side
    157,420.35x = 32,523,992,767.61
  5. Step 5: Solve for x
    x = 32,523,992,767.61/157,420.35
  6. Step 6: Final answer
    x = 206,606.03

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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.