Home / 142,275.08-213,412.62-48,781.64

Finding the Fourth Proportional to 142,275.08, 213,412.62 and 48,781.64

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Solution

The fourth proportional to 142,275.08, 213,412.62 and 48,781.64 is: 73,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,275.08 : 213,412.62 = 48,781.64 : x
  2. Step 2: Convert to fraction form
    142,275.08/213,412.62 = 48,781.64/x
  3. Step 3: Cross multiply
    142,275.08x = 213,412.62 × 48,781.64
  4. Step 4: Simplify right side
    142,275.08x = 10,410,617,600.30
  5. Step 5: Solve for x
    x = 10,410,617,600.30/142,275.08
  6. Step 6: Final answer
    x = 73,172.46

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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.