Home / 156,974.40-235,375.20-51,739.20

Finding the Fourth Proportional to 156,974.40, 235,375.20 and 51,739.20

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Solution

The fourth proportional to 156,974.40, 235,375.20 and 51,739.20 is: 77,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.40 : 235,375.20 = 51,739.20 : x
  2. Step 2: Convert to fraction form
    156,974.40/235,375.20 = 51,739.20/x
  3. Step 3: Cross multiply
    156,974.40x = 235,375.20 × 51,739.20
  4. Step 4: Simplify right side
    156,974.40x = 12,178,124,547.84
  5. Step 5: Solve for x
    x = 12,178,124,547.84/156,974.40
  6. Step 6: Final answer
    x = 77,580.32

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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.