Home / 123,341.44-170,212.14-72,355.01

Finding the Fourth Proportional to 123,341.44, 170,212.14 and 72,355.01

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Solution

The fourth proportional to 123,341.44, 170,212.14 and 72,355.01 is: 99,850.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,341.44 : 170,212.14 = 72,355.01 : x
  2. Step 2: Convert to fraction form
    123,341.44/170,212.14 = 72,355.01/x
  3. Step 3: Cross multiply
    123,341.44x = 170,212.14 × 72,355.01
  4. Step 4: Simplify right side
    123,341.44x = 12,315,701,091.82
  5. Step 5: Solve for x
    x = 12,315,701,091.82/123,341.44
  6. Step 6: Final answer
    x = 99,850.47

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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.