Home / 156,976.40-235,464.60-38,646.80

Finding the Fourth Proportional to 156,976.40, 235,464.60 and 38,646.80

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Solution

The fourth proportional to 156,976.40, 235,464.60 and 38,646.80 is: 57,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,976.40 : 235,464.60 = 38,646.80 : x
  2. Step 2: Convert to fraction form
    156,976.40/235,464.60 = 38,646.80/x
  3. Step 3: Cross multiply
    156,976.40x = 235,464.60 × 38,646.80
  4. Step 4: Simplify right side
    156,976.40x = 9,099,953,303.28
  5. Step 5: Solve for x
    x = 9,099,953,303.28/156,976.40
  6. Step 6: Final answer
    x = 57,970.20

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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.