Home / 156,747.64-235,132.74-77,782.36

Finding the Fourth Proportional to 156,747.64, 235,132.74 and 77,782.36

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Solution

The fourth proportional to 156,747.64, 235,132.74 and 77,782.36 is: 116,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.64 : 235,132.74 = 77,782.36 : x
  2. Step 2: Convert to fraction form
    156,747.64/235,132.74 = 77,782.36/x
  3. Step 3: Cross multiply
    156,747.64x = 235,132.74 × 77,782.36
  4. Step 4: Simplify right side
    156,747.64x = 18,289,179,430.47
  5. Step 5: Solve for x
    x = 18,289,179,430.47/156,747.64
  6. Step 6: Final answer
    x = 116,679.14

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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.