Home / 157,557.80-236,139.60-78,694.04

Finding the Fourth Proportional to 157,557.80, 236,139.60 and 78,694.04

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Solution

The fourth proportional to 157,557.80, 236,139.60 and 78,694.04 is: 117,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,557.80 : 236,139.60 = 78,694.04 : x
  2. Step 2: Convert to fraction form
    157,557.80/236,139.60 = 78,694.04/x
  3. Step 3: Cross multiply
    157,557.80x = 236,139.60 × 78,694.04
  4. Step 4: Simplify right side
    157,557.80x = 18,582,779,127.98
  5. Step 5: Solve for x
    x = 18,582,779,127.98/157,557.80
  6. Step 6: Final answer
    x = 117,942.62

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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.