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Finding the Fourth Proportional to 84,007.70, 117,766.30 and 84,007.70

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Solution

The fourth proportional to 84,007.70, 117,766.30 and 84,007.70 is: 117,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,007.70 : 117,766.30 = 84,007.70 : x
  2. Step 2: Convert to fraction form
    84,007.70/117,766.30 = 84,007.70/x
  3. Step 3: Cross multiply
    84,007.70x = 117,766.30 × 84,007.70
  4. Step 4: Simplify right side
    84,007.70x = 9,893,276,000.51
  5. Step 5: Solve for x
    x = 9,893,276,000.51/84,007.70
  6. Step 6: Final answer
    x = 117,766.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.