Home / 142,320.08-213,515.16-100,282.25

Finding the Fourth Proportional to 142,320.08, 213,515.16 and 100,282.25

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Solution

The fourth proportional to 142,320.08, 213,515.16 and 100,282.25 is: 150,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320.08 : 213,515.16 = 100,282.25 : x
  2. Step 2: Convert to fraction form
    142,320.08/213,515.16 = 100,282.25/x
  3. Step 3: Cross multiply
    142,320.08x = 213,515.16 × 100,282.25
  4. Step 4: Simplify right side
    142,320.08x = 21,411,780,811.64
  5. Step 5: Solve for x
    x = 21,411,780,811.64/142,320.08
  6. Step 6: Final answer
    x = 150,448.06

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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.