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Finding the Fourth Proportional to 84,682.40, 127,023.60 and 70,904.30

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Solution

The fourth proportional to 84,682.40, 127,023.60 and 70,904.30 is: 106,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,682.40 : 127,023.60 = 70,904.30 : x
  2. Step 2: Convert to fraction form
    84,682.40/127,023.60 = 70,904.30/x
  3. Step 3: Cross multiply
    84,682.40x = 127,023.60 × 70,904.30
  4. Step 4: Simplify right side
    84,682.40x = 9,006,519,441.48
  5. Step 5: Solve for x
    x = 9,006,519,441.48/84,682.40
  6. Step 6: Final answer
    x = 106,356.45

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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.