Home / 142,125.69-213,322.49-104,571.26

Finding the Fourth Proportional to 142,125.69, 213,322.49 and 104,571.26

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Solution

The fourth proportional to 142,125.69, 213,322.49 and 104,571.26 is: 156,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,125.69 : 213,322.49 = 104,571.26 : x
  2. Step 2: Convert to fraction form
    142,125.69/213,322.49 = 104,571.26/x
  3. Step 3: Cross multiply
    142,125.69x = 213,322.49 × 104,571.26
  4. Step 4: Simplify right side
    142,125.69x = 22,307,401,565.64
  5. Step 5: Solve for x
    x = 22,307,401,565.64/142,125.69
  6. Step 6: Final answer
    x = 156,955.45

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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.