Home / 110,692.16-152,708.64-77,177.60

Finding the Fourth Proportional to 110,692.16, 152,708.64 and 77,177.60

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Solution

The fourth proportional to 110,692.16, 152,708.64 and 77,177.60 is: 106,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,692.16 : 152,708.64 = 77,177.60 : x
  2. Step 2: Convert to fraction form
    110,692.16/152,708.64 = 77,177.60/x
  3. Step 3: Cross multiply
    110,692.16x = 152,708.64 × 77,177.60
  4. Step 4: Simplify right side
    110,692.16x = 11,785,686,334.46
  5. Step 5: Solve for x
    x = 11,785,686,334.46/110,692.16
  6. Step 6: Final answer
    x = 106,472.64

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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.