Home / 153,487.08-211,826.44-89,824.86

Finding the Fourth Proportional to 153,487.08, 211,826.44 and 89,824.86

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Solution

The fourth proportional to 153,487.08, 211,826.44 and 89,824.86 is: 123,966.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,487.08 : 211,826.44 = 89,824.86 : x
  2. Step 2: Convert to fraction form
    153,487.08/211,826.44 = 89,824.86/x
  3. Step 3: Cross multiply
    153,487.08x = 211,826.44 × 89,824.86
  4. Step 4: Simplify right side
    153,487.08x = 19,027,280,317.30
  5. Step 5: Solve for x
    x = 19,027,280,317.30/153,487.08
  6. Step 6: Final answer
    x = 123,966.66

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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.