Home / 142,159.38-213,239.34-36,978.18

Finding the Fourth Proportional to 142,159.38, 213,239.34 and 36,978.18

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Solution

The fourth proportional to 142,159.38, 213,239.34 and 36,978.18 is: 55,467.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,159.38 : 213,239.34 = 36,978.18 : x
  2. Step 2: Convert to fraction form
    142,159.38/213,239.34 = 36,978.18/x
  3. Step 3: Cross multiply
    142,159.38x = 213,239.34 × 36,978.18
  4. Step 4: Simplify right side
    142,159.38x = 7,885,202,697.60
  5. Step 5: Solve for x
    x = 7,885,202,697.60/142,159.38
  6. Step 6: Final answer
    x = 55,467.34

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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.