Home / 156,701.40-235,205.70-77,904.60

Finding the Fourth Proportional to 156,701.40, 235,205.70 and 77,904.60

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Solution

The fourth proportional to 156,701.40, 235,205.70 and 77,904.60 is: 116,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,701.40 : 235,205.70 = 77,904.60 : x
  2. Step 2: Convert to fraction form
    156,701.40/235,205.70 = 77,904.60/x
  3. Step 3: Cross multiply
    156,701.40x = 235,205.70 × 77,904.60
  4. Step 4: Simplify right side
    156,701.40x = 18,323,605,976.22
  5. Step 5: Solve for x
    x = 18,323,605,976.22/156,701.40
  6. Step 6: Final answer
    x = 116,933.26

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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.