Home / 272,947.74-409,466.16-85,915.50

Finding the Fourth Proportional to 272,947.74, 409,466.16 and 85,915.50

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Solution

The fourth proportional to 272,947.74, 409,466.16 and 85,915.50 is: 128,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,947.74 : 409,466.16 = 85,915.50 : x
  2. Step 2: Convert to fraction form
    272,947.74/409,466.16 = 85,915.50/x
  3. Step 3: Cross multiply
    272,947.74x = 409,466.16 × 85,915.50
  4. Step 4: Simplify right side
    272,947.74x = 35,179,489,869.48
  5. Step 5: Solve for x
    x = 35,179,489,869.48/272,947.74
  6. Step 6: Final answer
    x = 128,887.27

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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.