Home / 90,202.16-135,300.44-42,851.33

Finding the Fourth Proportional to 90,202.16, 135,300.44 and 42,851.33

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Solution

The fourth proportional to 90,202.16, 135,300.44 and 42,851.33 is: 64,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,202.16 : 135,300.44 = 42,851.33 : x
  2. Step 2: Convert to fraction form
    90,202.16/135,300.44 = 42,851.33/x
  3. Step 3: Cross multiply
    90,202.16x = 135,300.44 × 42,851.33
  4. Step 4: Simplify right side
    90,202.16x = 5,797,803,127.08
  5. Step 5: Solve for x
    x = 5,797,803,127.08/90,202.16
  6. Step 6: Final answer
    x = 64,275.66

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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.