Home / 97,356.20-145,330.06-85,546.40

Finding the Fourth Proportional to 97,356.20, 145,330.06 and 85,546.40

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Solution

The fourth proportional to 97,356.20, 145,330.06 and 85,546.40 is: 127,700.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,356.20 : 145,330.06 = 85,546.40 : x
  2. Step 2: Convert to fraction form
    97,356.20/145,330.06 = 85,546.40/x
  3. Step 3: Cross multiply
    97,356.20x = 145,330.06 × 85,546.40
  4. Step 4: Simplify right side
    97,356.20x = 12,432,463,444.78
  5. Step 5: Solve for x
    x = 12,432,463,444.78/97,356.20
  6. Step 6: Final answer
    x = 127,700.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.