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Finding the Fourth Proportional to 160,029.72, 240,128.40 and 103,856.60

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Solution

The fourth proportional to 160,029.72, 240,128.40 and 103,856.60 is: 155,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,029.72 : 240,128.40 = 103,856.60 : x
  2. Step 2: Convert to fraction form
    160,029.72/240,128.40 = 103,856.60/x
  3. Step 3: Cross multiply
    160,029.72x = 240,128.40 × 103,856.60
  4. Step 4: Simplify right side
    160,029.72x = 24,938,919,187.44
  5. Step 5: Solve for x
    x = 24,938,919,187.44/160,029.72
  6. Step 6: Final answer
    x = 155,839.30

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1.5x scale

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.