Home / 156,919.15-235,378.73-51,724.45

Finding the Fourth Proportional to 156,919.15, 235,378.73 and 51,724.45

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Solution

The fourth proportional to 156,919.15, 235,378.73 and 51,724.45 is: 77,586.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.15 : 235,378.73 = 51,724.45 : x
  2. Step 2: Convert to fraction form
    156,919.15/235,378.73 = 51,724.45/x
  3. Step 3: Cross multiply
    156,919.15x = 235,378.73 × 51,724.45
  4. Step 4: Simplify right side
    156,919.15x = 12,174,835,350.95
  5. Step 5: Solve for x
    x = 12,174,835,350.95/156,919.15
  6. Step 6: Final answer
    x = 77,586.68

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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.