Home / 123,921.50-170,933.63-98,830.94

Finding the Fourth Proportional to 123,921.50, 170,933.63 and 98,830.94

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Solution

The fourth proportional to 123,921.50, 170,933.63 and 98,830.94 is: 136,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,921.50 : 170,933.63 = 98,830.94 : x
  2. Step 2: Convert to fraction form
    123,921.50/170,933.63 = 98,830.94/x
  3. Step 3: Cross multiply
    123,921.50x = 170,933.63 × 98,830.94
  4. Step 4: Simplify right side
    123,921.50x = 16,893,531,330.51
  5. Step 5: Solve for x
    x = 16,893,531,330.51/123,921.50
  6. Step 6: Final answer
    x = 136,324.46

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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.