Home / 106,996.88-147,703.38-70,720.18

Finding the Fourth Proportional to 106,996.88, 147,703.38 and 70,720.18

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Solution

The fourth proportional to 106,996.88, 147,703.38 and 70,720.18 is: 97,625.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,996.88 : 147,703.38 = 70,720.18 : x
  2. Step 2: Convert to fraction form
    106,996.88/147,703.38 = 70,720.18/x
  3. Step 3: Cross multiply
    106,996.88x = 147,703.38 × 70,720.18
  4. Step 4: Simplify right side
    106,996.88x = 10,445,609,620.21
  5. Step 5: Solve for x
    x = 10,445,609,620.21/106,996.88
  6. Step 6: Final answer
    x = 97,625.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.