Home / 156,299.88-215,681.07-91,762.32

Finding the Fourth Proportional to 156,299.88, 215,681.07 and 91,762.32

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Solution

The fourth proportional to 156,299.88, 215,681.07 and 91,762.32 is: 126,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,299.88 : 215,681.07 = 91,762.32 : x
  2. Step 2: Convert to fraction form
    156,299.88/215,681.07 = 91,762.32/x
  3. Step 3: Cross multiply
    156,299.88x = 215,681.07 × 91,762.32
  4. Step 4: Simplify right side
    156,299.88x = 19,791,395,363.28
  5. Step 5: Solve for x
    x = 19,791,395,363.28/156,299.88
  6. Step 6: Final answer
    x = 126,624.51

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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.