Home / 101,905.40-152,719.86-57,510.20

Finding the Fourth Proportional to 101,905.40, 152,719.86 and 57,510.20

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Solution

The fourth proportional to 101,905.40, 152,719.86 and 57,510.20 is: 86,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,905.40 : 152,719.86 = 57,510.20 : x
  2. Step 2: Convert to fraction form
    101,905.40/152,719.86 = 57,510.20/x
  3. Step 3: Cross multiply
    101,905.40x = 152,719.86 × 57,510.20
  4. Step 4: Simplify right side
    101,905.40x = 8,782,949,692.57
  5. Step 5: Solve for x
    x = 8,782,949,692.57/101,905.40
  6. Step 6: Final answer
    x = 86,187.28

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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.