Home / 109,973.12-165,223.80-70,607.12

Finding the Fourth Proportional to 109,973.12, 165,223.80 and 70,607.12

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Solution

The fourth proportional to 109,973.12, 165,223.80 and 70,607.12 is: 106,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,973.12 : 165,223.80 = 70,607.12 : x
  2. Step 2: Convert to fraction form
    109,973.12/165,223.80 = 70,607.12/x
  3. Step 3: Cross multiply
    109,973.12x = 165,223.80 × 70,607.12
  4. Step 4: Simplify right side
    109,973.12x = 11,665,975,847.34
  5. Step 5: Solve for x
    x = 11,665,975,847.34/109,973.12
  6. Step 6: Final answer
    x = 106,080.25

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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.