Home / 157,091.10-235,377.45-78,035.10

Finding the Fourth Proportional to 157,091.10, 235,377.45 and 78,035.10

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Solution

The fourth proportional to 157,091.10, 235,377.45 and 78,035.10 is: 116,923.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,091.10 : 235,377.45 = 78,035.10 : x
  2. Step 2: Convert to fraction form
    157,091.10/235,377.45 = 78,035.10/x
  3. Step 3: Cross multiply
    157,091.10x = 235,377.45 × 78,035.10
  4. Step 4: Simplify right side
    157,091.10x = 18,367,702,848.50
  5. Step 5: Solve for x
    x = 18,367,702,848.50/157,091.10
  6. Step 6: Final answer
    x = 116,923.89

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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.