Home / 123,781.77-170,829.54-70,076.34

Finding the Fourth Proportional to 123,781.77, 170,829.54 and 70,076.34

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Solution

The fourth proportional to 123,781.77, 170,829.54 and 70,076.34 is: 96,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781.77 : 170,829.54 = 70,076.34 : x
  2. Step 2: Convert to fraction form
    123,781.77/170,829.54 = 70,076.34/x
  3. Step 3: Cross multiply
    123,781.77x = 170,829.54 × 70,076.34
  4. Step 4: Simplify right side
    123,781.77x = 11,971,108,927.08
  5. Step 5: Solve for x
    x = 11,971,108,927.08/123,781.77
  6. Step 6: Final answer
    x = 96,711.41

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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.