Home / 156,851.40-235,190.70-51,616.20

Finding the Fourth Proportional to 156,851.40, 235,190.70 and 51,616.20

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Solution

The fourth proportional to 156,851.40, 235,190.70 and 51,616.20 is: 77,395.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,851.40 : 235,190.70 = 51,616.20 : x
  2. Step 2: Convert to fraction form
    156,851.40/235,190.70 = 51,616.20/x
  3. Step 3: Cross multiply
    156,851.40x = 235,190.70 × 51,616.20
  4. Step 4: Simplify right side
    156,851.40x = 12,139,650,209.34
  5. Step 5: Solve for x
    x = 12,139,650,209.34/156,851.40
  6. Step 6: Final answer
    x = 77,395.87

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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.