Home / 142,175.64-213,256.12-53,422.32

Finding the Fourth Proportional to 142,175.64, 213,256.12 and 53,422.32

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Solution

The fourth proportional to 142,175.64, 213,256.12 and 53,422.32 is: 80,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,175.64 : 213,256.12 = 53,422.32 : x
  2. Step 2: Convert to fraction form
    142,175.64/213,256.12 = 53,422.32/x
  3. Step 3: Cross multiply
    142,175.64x = 213,256.12 × 53,422.32
  4. Step 4: Simplify right side
    142,175.64x = 11,392,636,684.60
  5. Step 5: Solve for x
    x = 11,392,636,684.60/142,175.64
  6. Step 6: Final answer
    x = 80,130.72

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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.