Home / 142,047.32-213,015.60-53,252.38

Finding the Fourth Proportional to 142,047.32, 213,015.60 and 53,252.38

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Solution

The fourth proportional to 142,047.32, 213,015.60 and 53,252.38 is: 79,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,047.32 : 213,015.60 = 53,252.38 : x
  2. Step 2: Convert to fraction form
    142,047.32/213,015.60 = 53,252.38/x
  3. Step 3: Cross multiply
    142,047.32x = 213,015.60 × 53,252.38
  4. Step 4: Simplify right side
    142,047.32x = 11,343,587,677.13
  5. Step 5: Solve for x
    x = 11,343,587,677.13/142,047.32
  6. Step 6: Final answer
    x = 79,857.81

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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.