Home / 89,000.20-133,338.30-70,402.60

Finding the Fourth Proportional to 89,000.20, 133,338.30 and 70,402.60

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Solution

The fourth proportional to 89,000.20, 133,338.30 and 70,402.60 is: 105,475.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,000.20 : 133,338.30 = 70,402.60 : x
  2. Step 2: Convert to fraction form
    89,000.20/133,338.30 = 70,402.60/x
  3. Step 3: Cross multiply
    89,000.20x = 133,338.30 × 70,402.60
  4. Step 4: Simplify right side
    89,000.20x = 9,387,362,999.58
  5. Step 5: Solve for x
    x = 9,387,362,999.58/89,000.20
  6. Step 6: Final answer
    x = 105,475.75

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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.