Home / 156,821.54-216,424.37-88,839.05

Finding the Fourth Proportional to 156,821.54, 216,424.37 and 88,839.05

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Solution

The fourth proportional to 156,821.54, 216,424.37 and 88,839.05 is: 122,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,821.54 : 216,424.37 = 88,839.05 : x
  2. Step 2: Convert to fraction form
    156,821.54/216,424.37 = 88,839.05/x
  3. Step 3: Cross multiply
    156,821.54x = 216,424.37 × 88,839.05
  4. Step 4: Simplify right side
    156,821.54x = 19,226,934,567.62
  5. Step 5: Solve for x
    x = 19,226,934,567.62/156,821.54
  6. Step 6: Final answer
    x = 122,603.92

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1.5x scale

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.