Home / 156,786.70-235,180.05-51,580.30

Finding the Fourth Proportional to 156,786.70, 235,180.05 and 51,580.30

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Solution

The fourth proportional to 156,786.70, 235,180.05 and 51,580.30 is: 77,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786.70 : 235,180.05 = 51,580.30 : x
  2. Step 2: Convert to fraction form
    156,786.70/235,180.05 = 51,580.30/x
  3. Step 3: Cross multiply
    156,786.70x = 235,180.05 × 51,580.30
  4. Step 4: Simplify right side
    156,786.70x = 12,130,657,533.02
  5. Step 5: Solve for x
    x = 12,130,657,533.02/156,786.70
  6. Step 6: Final answer
    x = 77,370.45

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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.