Home / 127,007.68-190,498.08-52,135.72

Finding the Fourth Proportional to 127,007.68, 190,498.08 and 52,135.72

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Solution

The fourth proportional to 127,007.68, 190,498.08 and 52,135.72 is: 78,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,007.68 : 190,498.08 = 52,135.72 : x
  2. Step 2: Convert to fraction form
    127,007.68/190,498.08 = 52,135.72/x
  3. Step 3: Cross multiply
    127,007.68x = 190,498.08 × 52,135.72
  4. Step 4: Simplify right side
    127,007.68x = 9,931,754,559.42
  5. Step 5: Solve for x
    x = 9,931,754,559.42/127,007.68
  6. Step 6: Final answer
    x = 78,198.06

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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.