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Finding the Fourth Proportional to 126,681.70, 190,011.62 and 37,955.11

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Solution

The fourth proportional to 126,681.70, 190,011.62 and 37,955.11 is: 56,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,681.70 : 190,011.62 = 37,955.11 : x
  2. Step 2: Convert to fraction form
    126,681.70/190,011.62 = 37,955.11/x
  3. Step 3: Cross multiply
    126,681.70x = 190,011.62 × 37,955.11
  4. Step 4: Simplify right side
    126,681.70x = 7,211,911,748.60
  5. Step 5: Solve for x
    x = 7,211,911,748.60/126,681.70
  6. Step 6: Final answer
    x = 56,929.39

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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.