Home / 127,392.12-191,090.07-48,510.72

Finding the Fourth Proportional to 127,392.12, 191,090.07 and 48,510.72

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Solution

The fourth proportional to 127,392.12, 191,090.07 and 48,510.72 is: 72,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,392.12 : 191,090.07 = 48,510.72 : x
  2. Step 2: Convert to fraction form
    127,392.12/191,090.07 = 48,510.72/x
  3. Step 3: Cross multiply
    127,392.12x = 191,090.07 × 48,510.72
  4. Step 4: Simplify right side
    127,392.12x = 9,269,916,880.55
  5. Step 5: Solve for x
    x = 9,269,916,880.55/127,392.12
  6. Step 6: Final answer
    x = 72,766.80

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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.