Home / 152,961.60-211,263.60-101,890.20

Finding the Fourth Proportional to 152,961.60, 211,263.60 and 101,890.20

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Solution

The fourth proportional to 152,961.60, 211,263.60 and 101,890.20 is: 140,726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,961.60 : 211,263.60 = 101,890.20 : x
  2. Step 2: Convert to fraction form
    152,961.60/211,263.60 = 101,890.20/x
  3. Step 3: Cross multiply
    152,961.60x = 211,263.60 × 101,890.20
  4. Step 4: Simplify right side
    152,961.60x = 21,525,690,456.72
  5. Step 5: Solve for x
    x = 21,525,690,456.72/152,961.60
  6. Step 6: Final answer
    x = 140,726.11

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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.