Home / 97,225.20-145,837.80-90,664.20

Finding the Fourth Proportional to 97,225.20, 145,837.80 and 90,664.20

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Solution

The fourth proportional to 97,225.20, 145,837.80 and 90,664.20 is: 135,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,225.20 : 145,837.80 = 90,664.20 : x
  2. Step 2: Convert to fraction form
    97,225.20/145,837.80 = 90,664.20/x
  3. Step 3: Cross multiply
    97,225.20x = 145,837.80 × 90,664.20
  4. Step 4: Simplify right side
    97,225.20x = 13,222,267,466.76
  5. Step 5: Solve for x
    x = 13,222,267,466.76/97,225.20
  6. Step 6: Final answer
    x = 135,996.30

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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.