Home / 157,374.89-236,136.04-78,495.20

Finding the Fourth Proportional to 157,374.89, 236,136.04 and 78,495.20

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Solution

The fourth proportional to 157,374.89, 236,136.04 and 78,495.20 is: 117,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,374.89 : 236,136.04 = 78,495.20 : x
  2. Step 2: Convert to fraction form
    157,374.89/236,136.04 = 78,495.20/x
  3. Step 3: Cross multiply
    157,374.89x = 236,136.04 × 78,495.20
  4. Step 4: Simplify right side
    157,374.89x = 18,535,544,310.09
  5. Step 5: Solve for x
    x = 18,535,544,310.09/157,374.89
  6. Step 6: Final answer
    x = 117,779.56

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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.