Home / 153,992.24-212,495.45-85,999.77

Finding the Fourth Proportional to 153,992.24, 212,495.45 and 85,999.77

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Solution

The fourth proportional to 153,992.24, 212,495.45 and 85,999.77 is: 118,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,992.24 : 212,495.45 = 85,999.77 : x
  2. Step 2: Convert to fraction form
    153,992.24/212,495.45 = 85,999.77/x
  3. Step 3: Cross multiply
    153,992.24x = 212,495.45 × 85,999.77
  4. Step 4: Simplify right side
    153,992.24x = 18,274,559,396.05
  5. Step 5: Solve for x
    x = 18,274,559,396.05/153,992.24
  6. Step 6: Final answer
    x = 118,671.95

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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.