Home / 236,416.15-326,253.18-128,985.85

Finding the Fourth Proportional to 236,416.15, 326,253.18 and 128,985.85

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Solution

The fourth proportional to 236,416.15, 326,253.18 and 128,985.85 is: 177,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,416.15 : 326,253.18 = 128,985.85 : x
  2. Step 2: Convert to fraction form
    236,416.15/326,253.18 = 128,985.85/x
  3. Step 3: Cross multiply
    236,416.15x = 326,253.18 × 128,985.85
  4. Step 4: Simplify right side
    236,416.15x = 42,082,043,737.50
  5. Step 5: Solve for x
    x = 42,082,043,737.50/236,416.15
  6. Step 6: Final answer
    x = 177,999.87

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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.