Home / 157,610.18-236,294.91-78,780.98

Finding the Fourth Proportional to 157,610.18, 236,294.91 and 78,780.98

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Solution

The fourth proportional to 157,610.18, 236,294.91 and 78,780.98 is: 118,111.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,610.18 : 236,294.91 = 78,780.98 : x
  2. Step 2: Convert to fraction form
    157,610.18/236,294.91 = 78,780.98/x
  3. Step 3: Cross multiply
    157,610.18x = 236,294.91 × 78,780.98
  4. Step 4: Simplify right side
    157,610.18x = 18,615,544,578.81
  5. Step 5: Solve for x
    x = 18,615,544,578.81/157,610.18
  6. Step 6: Final answer
    x = 118,111.31

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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.