Home / 127,045.20-190,643.40-48,167.40

Finding the Fourth Proportional to 127,045.20, 190,643.40 and 48,167.40

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Solution

The fourth proportional to 127,045.20, 190,643.40 and 48,167.40 is: 72,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,045.20 : 190,643.40 = 48,167.40 : x
  2. Step 2: Convert to fraction form
    127,045.20/190,643.40 = 48,167.40/x
  3. Step 3: Cross multiply
    127,045.20x = 190,643.40 × 48,167.40
  4. Step 4: Simplify right side
    127,045.20x = 9,182,796,905.16
  5. Step 5: Solve for x
    x = 9,182,796,905.16/127,045.20
  6. Step 6: Final answer
    x = 72,279.76

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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.