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Finding the Fourth Proportional to 126,874.81, 175,097.91 and 70,291.45

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Solution

The fourth proportional to 126,874.81, 175,097.91 and 70,291.45 is: 97,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,874.81 : 175,097.91 = 70,291.45 : x
  2. Step 2: Convert to fraction form
    126,874.81/175,097.91 = 70,291.45/x
  3. Step 3: Cross multiply
    126,874.81x = 175,097.91 × 70,291.45
  4. Step 4: Simplify right side
    126,874.81x = 12,307,885,985.87
  5. Step 5: Solve for x
    x = 12,307,885,985.87/126,874.81
  6. Step 6: Final answer
    x = 97,008.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.