Home / 195,128.60-292,482.92-127,635.21

Finding the Fourth Proportional to 195,128.60, 292,482.92 and 127,635.21

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Solution

The fourth proportional to 195,128.60, 292,482.92 and 127,635.21 is: 191,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,128.60 : 292,482.92 = 127,635.21 : x
  2. Step 2: Convert to fraction form
    195,128.60/292,482.92 = 127,635.21/x
  3. Step 3: Cross multiply
    195,128.60x = 292,482.92 × 127,635.21
  4. Step 4: Simplify right side
    195,128.60x = 37,331,118,277.44
  5. Step 5: Solve for x
    x = 37,331,118,277.44/195,128.60
  6. Step 6: Final answer
    x = 191,315.47

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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.