Home / 99,353.40-149,030.10-55,116.60

Finding the Fourth Proportional to 99,353.40, 149,030.10 and 55,116.60

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Solution

The fourth proportional to 99,353.40, 149,030.10 and 55,116.60 is: 82,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,353.40 : 149,030.10 = 55,116.60 : x
  2. Step 2: Convert to fraction form
    99,353.40/149,030.10 = 55,116.60/x
  3. Step 3: Cross multiply
    99,353.40x = 149,030.10 × 55,116.60
  4. Step 4: Simplify right side
    99,353.40x = 8,214,032,409.66
  5. Step 5: Solve for x
    x = 8,214,032,409.66/99,353.40
  6. Step 6: Final answer
    x = 82,674.90

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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.