Home / 156,299.36-215,692.80-84,681.16

Finding the Fourth Proportional to 156,299.36, 215,692.80 and 84,681.16

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Solution

The fourth proportional to 156,299.36, 215,692.80 and 84,681.16 is: 116,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,299.36 : 215,692.80 = 84,681.16 : x
  2. Step 2: Convert to fraction form
    156,299.36/215,692.80 = 84,681.16/x
  3. Step 3: Cross multiply
    156,299.36x = 215,692.80 × 84,681.16
  4. Step 4: Simplify right side
    156,299.36x = 18,265,116,507.65
  5. Step 5: Solve for x
    x = 18,265,116,507.65/156,299.36
  6. Step 6: Final answer
    x = 116,859.83

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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.