Home / 85,666.06-127,885.94-74,459.05

Finding the Fourth Proportional to 85,666.06, 127,885.94 and 74,459.05

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Solution

The fourth proportional to 85,666.06, 127,885.94 and 74,459.05 is: 111,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.06 : 127,885.94 = 74,459.05 : x
  2. Step 2: Convert to fraction form
    85,666.06/127,885.94 = 74,459.05/x
  3. Step 3: Cross multiply
    85,666.06x = 127,885.94 × 74,459.05
  4. Step 4: Simplify right side
    85,666.06x = 9,522,265,187.97
  5. Step 5: Solve for x
    x = 9,522,265,187.97/85,666.06
  6. Step 6: Final answer
    x = 111,155.64

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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.