Home / 156,739.70-235,109.55-134,189.30

Finding the Fourth Proportional to 156,739.70, 235,109.55 and 134,189.30

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Solution

The fourth proportional to 156,739.70, 235,109.55 and 134,189.30 is: 201,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.70 : 235,109.55 = 134,189.30 : x
  2. Step 2: Convert to fraction form
    156,739.70/235,109.55 = 134,189.30/x
  3. Step 3: Cross multiply
    156,739.70x = 235,109.55 × 134,189.30
  4. Step 4: Simplify right side
    156,739.70x = 31,549,185,937.82
  5. Step 5: Solve for x
    x = 31,549,185,937.82/156,739.70
  6. Step 6: Final answer
    x = 201,283.95

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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.