Home / 156,053.40-233,981.68-85,981.92

Finding the Fourth Proportional to 156,053.40, 233,981.68 and 85,981.92

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Solution

The fourth proportional to 156,053.40, 233,981.68 and 85,981.92 is: 128,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,053.40 : 233,981.68 = 85,981.92 : x
  2. Step 2: Convert to fraction form
    156,053.40/233,981.68 = 85,981.92/x
  3. Step 3: Cross multiply
    156,053.40x = 233,981.68 × 85,981.92
  4. Step 4: Simplify right side
    156,053.40x = 20,118,194,091.23
  5. Step 5: Solve for x
    x = 20,118,194,091.23/156,053.40
  6. Step 6: Final answer
    x = 128,918.65

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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.