Home / 127,127.04-190,752-52,302.40

Finding the Fourth Proportional to 127,127.04, 190,752 and 52,302.40

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Solution

The fourth proportional to 127,127.04, 190,752 and 52,302.40 is: 78,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,127.04 : 190,752 = 52,302.40 : x
  2. Step 2: Convert to fraction form
    127,127.04/190,752 = 52,302.40/x
  3. Step 3: Cross multiply
    127,127.04x = 190,752 × 52,302.40
  4. Step 4: Simplify right side
    127,127.04x = 9,976,787,404.80
  5. Step 5: Solve for x
    x = 9,976,787,404.80/127,127.04
  6. Step 6: Final answer
    x = 78,478.88

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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.