Home / 142,142.10-213,467.27-136,427.63

Finding the Fourth Proportional to 142,142.10, 213,467.27 and 136,427.63

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Solution

The fourth proportional to 142,142.10, 213,467.27 and 136,427.63 is: 204,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,142.10 : 213,467.27 = 136,427.63 : x
  2. Step 2: Convert to fraction form
    142,142.10/213,467.27 = 136,427.63/x
  3. Step 3: Cross multiply
    142,142.10x = 213,467.27 × 136,427.63
  4. Step 4: Simplify right side
    142,142.10x = 29,122,832,661.33
  5. Step 5: Solve for x
    x = 29,122,832,661.33/142,142.10
  6. Step 6: Final answer
    x = 204,885.35

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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.