Home / 156,919.06-216,543.70-85,297.24

Finding the Fourth Proportional to 156,919.06, 216,543.70 and 85,297.24

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Solution

The fourth proportional to 156,919.06, 216,543.70 and 85,297.24 is: 117,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.06 : 216,543.70 = 85,297.24 : x
  2. Step 2: Convert to fraction form
    156,919.06/216,543.70 = 85,297.24/x
  3. Step 3: Cross multiply
    156,919.06x = 216,543.70 × 85,297.24
  4. Step 4: Simplify right side
    156,919.06x = 18,470,579,949.39
  5. Step 5: Solve for x
    x = 18,470,579,949.39/156,919.06
  6. Step 6: Final answer
    x = 117,707.69

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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.