Home / 156,972.13-235,378.81-51,756.37

Finding the Fourth Proportional to 156,972.13, 235,378.81 and 51,756.37

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Solution

The fourth proportional to 156,972.13, 235,378.81 and 51,756.37 is: 77,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.13 : 235,378.81 = 51,756.37 : x
  2. Step 2: Convert to fraction form
    156,972.13/235,378.81 = 51,756.37/x
  3. Step 3: Cross multiply
    156,972.13x = 235,378.81 × 51,756.37
  4. Step 4: Simplify right side
    156,972.13x = 12,182,352,780.52
  5. Step 5: Solve for x
    x = 12,182,352,780.52/156,972.13
  6. Step 6: Final answer
    x = 77,608.38

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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.