Home / 156,631.77-216,152.04-85,011.81

Finding the Fourth Proportional to 156,631.77, 216,152.04 and 85,011.81

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Solution

The fourth proportional to 156,631.77, 216,152.04 and 85,011.81 is: 117,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,631.77 : 216,152.04 = 85,011.81 : x
  2. Step 2: Convert to fraction form
    156,631.77/216,152.04 = 85,011.81/x
  3. Step 3: Cross multiply
    156,631.77x = 216,152.04 × 85,011.81
  4. Step 4: Simplify right side
    156,631.77x = 18,375,476,155.59
  5. Step 5: Solve for x
    x = 18,375,476,155.59/156,631.77
  6. Step 6: Final answer
    x = 117,316.40

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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.