Home / 94,909.44-142,364.14-86,989.69

Finding the Fourth Proportional to 94,909.44, 142,364.14 and 86,989.69

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Solution

The fourth proportional to 94,909.44, 142,364.14 and 86,989.69 is: 130,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,909.44 : 142,364.14 = 86,989.69 : x
  2. Step 2: Convert to fraction form
    94,909.44/142,364.14 = 86,989.69/x
  3. Step 3: Cross multiply
    94,909.44x = 142,364.14 × 86,989.69
  4. Step 4: Simplify right side
    94,909.44x = 12,384,212,405.72
  5. Step 5: Solve for x
    x = 12,384,212,405.72/94,909.44
  6. Step 6: Final answer
    x = 130,484.52

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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.