Home / 153,947.17-212,446.69-85,963.60

Finding the Fourth Proportional to 153,947.17, 212,446.69 and 85,963.60

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Solution

The fourth proportional to 153,947.17, 212,446.69 and 85,963.60 is: 118,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,947.17 : 212,446.69 = 85,963.60 : x
  2. Step 2: Convert to fraction form
    153,947.17/212,446.69 = 85,963.60/x
  3. Step 3: Cross multiply
    153,947.17x = 212,446.69 × 85,963.60
  4. Step 4: Simplify right side
    153,947.17x = 18,262,682,280.48
  5. Step 5: Solve for x
    x = 18,262,682,280.48/153,947.17
  6. Step 6: Final answer
    x = 118,629.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.