Home / 109,416.20-164,009.10-42,830.60

Finding the Fourth Proportional to 109,416.20, 164,009.10 and 42,830.60

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Solution

The fourth proportional to 109,416.20, 164,009.10 and 42,830.60 is: 64,200.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,416.20 : 164,009.10 = 42,830.60 : x
  2. Step 2: Convert to fraction form
    109,416.20/164,009.10 = 42,830.60/x
  3. Step 3: Cross multiply
    109,416.20x = 164,009.10 × 42,830.60
  4. Step 4: Simplify right side
    109,416.20x = 7,024,608,158.46
  5. Step 5: Solve for x
    x = 7,024,608,158.46/109,416.20
  6. Step 6: Final answer
    x = 64,200.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.