Home / 105,461.30-157,995.09-70,425.56

Finding the Fourth Proportional to 105,461.30, 157,995.09 and 70,425.56

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Solution

The fourth proportional to 105,461.30, 157,995.09 and 70,425.56 is: 105,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.30 : 157,995.09 = 70,425.56 : x
  2. Step 2: Convert to fraction form
    105,461.30/157,995.09 = 70,425.56/x
  3. Step 3: Cross multiply
    105,461.30x = 157,995.09 × 70,425.56
  4. Step 4: Simplify right side
    105,461.30x = 11,126,892,690.50
  5. Step 5: Solve for x
    x = 11,126,892,690.50/105,461.30
  6. Step 6: Final answer
    x = 105,506.88

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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.