Home / 101,766.40-140,430.60-56,440.09

Finding the Fourth Proportional to 101,766.40, 140,430.60 and 56,440.09

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Solution

The fourth proportional to 101,766.40, 140,430.60 and 56,440.09 is: 77,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,766.40 : 140,430.60 = 56,440.09 : x
  2. Step 2: Convert to fraction form
    101,766.40/140,430.60 = 56,440.09/x
  3. Step 3: Cross multiply
    101,766.40x = 140,430.60 × 56,440.09
  4. Step 4: Simplify right side
    101,766.40x = 7,925,915,702.75
  5. Step 5: Solve for x
    x = 7,925,915,702.75/101,766.40
  6. Step 6: Final answer
    x = 77,883.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.