Home / 123,219.78-170,036.22-69,501.60

Finding the Fourth Proportional to 123,219.78, 170,036.22 and 69,501.60

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Solution

The fourth proportional to 123,219.78, 170,036.22 and 69,501.60 is: 95,908.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,219.78 : 170,036.22 = 69,501.60 : x
  2. Step 2: Convert to fraction form
    123,219.78/170,036.22 = 69,501.60/x
  3. Step 3: Cross multiply
    123,219.78x = 170,036.22 × 69,501.60
  4. Step 4: Simplify right side
    123,219.78x = 11,817,789,347.95
  5. Step 5: Solve for x
    x = 11,817,789,347.95/123,219.78
  6. Step 6: Final answer
    x = 95,908.22

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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.