Home / 156,810.24-216,398.34-85,190.31

Finding the Fourth Proportional to 156,810.24, 216,398.34 and 85,190.31

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Solution

The fourth proportional to 156,810.24, 216,398.34 and 85,190.31 is: 117,562.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,810.24 : 216,398.34 = 85,190.31 : x
  2. Step 2: Convert to fraction form
    156,810.24/216,398.34 = 85,190.31/x
  3. Step 3: Cross multiply
    156,810.24x = 216,398.34 × 85,190.31
  4. Step 4: Simplify right side
    156,810.24x = 18,435,041,668.09
  5. Step 5: Solve for x
    x = 18,435,041,668.09/156,810.24
  6. Step 6: Final answer
    x = 117,562.74

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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.