Home / 156,533.62-216,011.50-87,623.06

Finding the Fourth Proportional to 156,533.62, 216,011.50 and 87,623.06

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Solution

The fourth proportional to 156,533.62, 216,011.50 and 87,623.06 is: 120,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,533.62 : 216,011.50 = 87,623.06 : x
  2. Step 2: Convert to fraction form
    156,533.62/216,011.50 = 87,623.06/x
  3. Step 3: Cross multiply
    156,533.62x = 216,011.50 × 87,623.06
  4. Step 4: Simplify right side
    156,533.62x = 18,927,588,625.19
  5. Step 5: Solve for x
    x = 18,927,588,625.19/156,533.62
  6. Step 6: Final answer
    x = 120,917.08

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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.