Home / 156,701.80-216,247.80-85,081.24

Finding the Fourth Proportional to 156,701.80, 216,247.80 and 85,081.24

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Solution

The fourth proportional to 156,701.80, 216,247.80 and 85,081.24 is: 117,411.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,701.80 : 216,247.80 = 85,081.24 : x
  2. Step 2: Convert to fraction form
    156,701.80/216,247.80 = 85,081.24/x
  3. Step 3: Cross multiply
    156,701.80x = 216,247.80 × 85,081.24
  4. Step 4: Simplify right side
    156,701.80x = 18,398,630,971.27
  5. Step 5: Solve for x
    x = 18,398,630,971.27/156,701.80
  6. Step 6: Final answer
    x = 117,411.74

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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.