Home / 156,053.81-215,352.72-84,432.26

Finding the Fourth Proportional to 156,053.81, 215,352.72 and 84,432.26

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Solution

The fourth proportional to 156,053.81, 215,352.72 and 84,432.26 is: 116,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,053.81 : 215,352.72 = 84,432.26 : x
  2. Step 2: Convert to fraction form
    156,053.81/215,352.72 = 84,432.26/x
  3. Step 3: Cross multiply
    156,053.81x = 215,352.72 × 84,432.26
  4. Step 4: Simplify right side
    156,053.81x = 18,182,716,846.75
  5. Step 5: Solve for x
    x = 18,182,716,846.75/156,053.81
  6. Step 6: Final answer
    x = 116,515.69

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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.