Home / 149,501.46-206,288.46-89,070.60

Finding the Fourth Proportional to 149,501.46, 206,288.46 and 89,070.60

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Solution

The fourth proportional to 149,501.46, 206,288.46 and 89,070.60 is: 122,903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,501.46 : 206,288.46 = 89,070.60 : x
  2. Step 2: Convert to fraction form
    149,501.46/206,288.46 = 89,070.60/x
  3. Step 3: Cross multiply
    149,501.46x = 206,288.46 × 89,070.60
  4. Step 4: Simplify right side
    149,501.46x = 18,374,236,905.28
  5. Step 5: Solve for x
    x = 18,374,236,905.28/149,501.46
  6. Step 6: Final answer
    x = 122,903.39

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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.