Home / 156,682.40-235,177.20-77,885.60

Finding the Fourth Proportional to 156,682.40, 235,177.20 and 77,885.60

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Solution

The fourth proportional to 156,682.40, 235,177.20 and 77,885.60 is: 116,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,682.40 : 235,177.20 = 77,885.60 : x
  2. Step 2: Convert to fraction form
    156,682.40/235,177.20 = 77,885.60/x
  3. Step 3: Cross multiply
    156,682.40x = 235,177.20 × 77,885.60
  4. Step 4: Simplify right side
    156,682.40x = 18,316,917,328.32
  5. Step 5: Solve for x
    x = 18,316,917,328.32/156,682.40
  6. Step 6: Final answer
    x = 116,904.75

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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.