Home / 156,816.30-234,994.80-77,772.66

Finding the Fourth Proportional to 156,816.30, 234,994.80 and 77,772.66

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Solution

The fourth proportional to 156,816.30, 234,994.80 and 77,772.66 is: 116,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,816.30 : 234,994.80 = 77,772.66 : x
  2. Step 2: Convert to fraction form
    156,816.30/234,994.80 = 77,772.66/x
  3. Step 3: Cross multiply
    156,816.30x = 234,994.80 × 77,772.66
  4. Step 4: Simplify right side
    156,816.30x = 18,276,169,507.19
  5. Step 5: Solve for x
    x = 18,276,169,507.19/156,816.30
  6. Step 6: Final answer
    x = 116,545.09

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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.