Home / 142,319.06-213,513.62-100,281.24

Finding the Fourth Proportional to 142,319.06, 213,513.62 and 100,281.24

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Solution

The fourth proportional to 142,319.06, 213,513.62 and 100,281.24 is: 150,446.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,319.06 : 213,513.62 = 100,281.24 : x
  2. Step 2: Convert to fraction form
    142,319.06/213,513.62 = 100,281.24/x
  3. Step 3: Cross multiply
    142,319.06x = 213,513.62 × 100,281.24
  4. Step 4: Simplify right side
    142,319.06x = 21,411,410,570.49
  5. Step 5: Solve for x
    x = 21,411,410,570.49/142,319.06
  6. Step 6: Final answer
    x = 150,446.54

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1.5x scale

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.