Home / 142,627.36-214,151.28-79,570.64

Finding the Fourth Proportional to 142,627.36, 214,151.28 and 79,570.64

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Solution

The fourth proportional to 142,627.36, 214,151.28 and 79,570.64 is: 119,473.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,627.36 : 214,151.28 = 79,570.64 : x
  2. Step 2: Convert to fraction form
    142,627.36/214,151.28 = 79,570.64/x
  3. Step 3: Cross multiply
    142,627.36x = 214,151.28 × 79,570.64
  4. Step 4: Simplify right side
    142,627.36x = 17,040,154,406.42
  5. Step 5: Solve for x
    x = 17,040,154,406.42/142,627.36
  6. Step 6: Final answer
    x = 119,473.25

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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.