Home / 99,986.74-149,814.02-70,342.29

Finding the Fourth Proportional to 99,986.74, 149,814.02 and 70,342.29

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Solution

The fourth proportional to 99,986.74, 149,814.02 and 70,342.29 is: 105,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,986.74 : 149,814.02 = 70,342.29 : x
  2. Step 2: Convert to fraction form
    99,986.74/149,814.02 = 70,342.29/x
  3. Step 3: Cross multiply
    99,986.74x = 149,814.02 × 70,342.29
  4. Step 4: Simplify right side
    99,986.74x = 10,538,261,416.76
  5. Step 5: Solve for x
    x = 10,538,261,416.76/99,986.74
  6. Step 6: Final answer
    x = 105,396.59

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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.