Home / 123,909.36-170,998.48-70,194.40

Finding the Fourth Proportional to 123,909.36, 170,998.48 and 70,194.40

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Solution

The fourth proportional to 123,909.36, 170,998.48 and 70,194.40 is: 96,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,909.36 : 170,998.48 = 70,194.40 : x
  2. Step 2: Convert to fraction form
    123,909.36/170,998.48 = 70,194.40/x
  3. Step 3: Cross multiply
    123,909.36x = 170,998.48 × 70,194.40
  4. Step 4: Simplify right side
    123,909.36x = 12,003,135,704.51
  5. Step 5: Solve for x
    x = 12,003,135,704.51/123,909.36
  6. Step 6: Final answer
    x = 96,870.29

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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.