Home / 156,154.86-215,492.19-84,533.04

Finding the Fourth Proportional to 156,154.86, 215,492.19 and 84,533.04

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Solution

The fourth proportional to 156,154.86, 215,492.19 and 84,533.04 is: 116,654.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.86 : 215,492.19 = 84,533.04 : x
  2. Step 2: Convert to fraction form
    156,154.86/215,492.19 = 84,533.04/x
  3. Step 3: Cross multiply
    156,154.86x = 215,492.19 × 84,533.04
  4. Step 4: Simplify right side
    156,154.86x = 18,216,209,916.96
  5. Step 5: Solve for x
    x = 18,216,209,916.96/156,154.86
  6. Step 6: Final answer
    x = 116,654.77

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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.