Home / 156,974.40-235,461.60-103,830.30

Finding the Fourth Proportional to 156,974.40, 235,461.60 and 103,830.30

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Solution

The fourth proportional to 156,974.40, 235,461.60 and 103,830.30 is: 155,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.40 : 235,461.60 = 103,830.30 : x
  2. Step 2: Convert to fraction form
    156,974.40/235,461.60 = 103,830.30/x
  3. Step 3: Cross multiply
    156,974.40x = 235,461.60 × 103,830.30
  4. Step 4: Simplify right side
    156,974.40x = 24,448,048,566.48
  5. Step 5: Solve for x
    x = 24,448,048,566.48/156,974.40
  6. Step 6: Final answer
    x = 155,745.45

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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.