Home / 190,927.40-286,304.70-85,692.20

Finding the Fourth Proportional to 190,927.40, 286,304.70 and 85,692.20

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Solution

The fourth proportional to 190,927.40, 286,304.70 and 85,692.20 is: 128,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,927.40 : 286,304.70 = 85,692.20 : x
  2. Step 2: Convert to fraction form
    190,927.40/286,304.70 = 85,692.20/x
  3. Step 3: Cross multiply
    190,927.40x = 286,304.70 × 85,692.20
  4. Step 4: Simplify right side
    190,927.40x = 24,534,079,613.34
  5. Step 5: Solve for x
    x = 24,534,079,613.34/190,927.40
  6. Step 6: Final answer
    x = 128,499.52

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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.