Home / 85,153.28-127,544.02-70,194.20

Finding the Fourth Proportional to 85,153.28, 127,544.02 and 70,194.20

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Solution

The fourth proportional to 85,153.28, 127,544.02 and 70,194.20 is: 105,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,153.28 : 127,544.02 = 70,194.20 : x
  2. Step 2: Convert to fraction form
    85,153.28/127,544.02 = 70,194.20/x
  3. Step 3: Cross multiply
    85,153.28x = 127,544.02 × 70,194.20
  4. Step 4: Simplify right side
    85,153.28x = 8,952,849,635.48
  5. Step 5: Solve for x
    x = 8,952,849,635.48/85,153.28
  6. Step 6: Final answer
    x = 105,138.05

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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.