Home / 70,397.12-105,494.16-68,267.36

Finding the Fourth Proportional to 70,397.12, 105,494.16 and 68,267.36

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Solution

The fourth proportional to 70,397.12, 105,494.16 and 68,267.36 is: 102,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.12 : 105,494.16 = 68,267.36 : x
  2. Step 2: Convert to fraction form
    70,397.12/105,494.16 = 68,267.36/x
  3. Step 3: Cross multiply
    70,397.12x = 105,494.16 × 68,267.36
  4. Step 4: Simplify right side
    70,397.12x = 7,201,807,798.62
  5. Step 5: Solve for x
    x = 7,201,807,798.62/70,397.12
  6. Step 6: Final answer
    x = 102,302.59

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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.