Home / 156,660.30-234,990.45-139,601.70

Finding the Fourth Proportional to 156,660.30, 234,990.45 and 139,601.70

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Solution

The fourth proportional to 156,660.30, 234,990.45 and 139,601.70 is: 209,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,660.30 : 234,990.45 = 139,601.70 : x
  2. Step 2: Convert to fraction form
    156,660.30/234,990.45 = 139,601.70/x
  3. Step 3: Cross multiply
    156,660.30x = 234,990.45 × 139,601.70
  4. Step 4: Simplify right side
    156,660.30x = 32,805,066,303.77
  5. Step 5: Solve for x
    x = 32,805,066,303.77/156,660.30
  6. Step 6: Final answer
    x = 209,402.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.