Home / 109,070.07-163,438.10-73,399.15

Finding the Fourth Proportional to 109,070.07, 163,438.10 and 73,399.15

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Solution

The fourth proportional to 109,070.07, 163,438.10 and 73,399.15 is: 109,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,070.07 : 163,438.10 = 73,399.15 : x
  2. Step 2: Convert to fraction form
    109,070.07/163,438.10 = 73,399.15/x
  3. Step 3: Cross multiply
    109,070.07x = 163,438.10 × 73,399.15
  4. Step 4: Simplify right side
    109,070.07x = 11,996,217,617.62
  5. Step 5: Solve for x
    x = 11,996,217,617.62/109,070.07
  6. Step 6: Final answer
    x = 109,986.34

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1.5x scale

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.