Home / 109,455.40-164,528.70-103,234.60

Finding the Fourth Proportional to 109,455.40, 164,528.70 and 103,234.60

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Solution

The fourth proportional to 109,455.40, 164,528.70 and 103,234.60 is: 155,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,455.40 : 164,528.70 = 103,234.60 : x
  2. Step 2: Convert to fraction form
    109,455.40/164,528.70 = 103,234.60/x
  3. Step 3: Cross multiply
    109,455.40x = 164,528.70 × 103,234.60
  4. Step 4: Simplify right side
    109,455.40x = 16,985,054,533.02
  5. Step 5: Solve for x
    x = 16,985,054,533.02/109,455.40
  6. Step 6: Final answer
    x = 155,177.86

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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.