Home / 123,970.05-171,094.19-70,272.45

Finding the Fourth Proportional to 123,970.05, 171,094.19 and 70,272.45

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Solution

The fourth proportional to 123,970.05, 171,094.19 and 70,272.45 is: 96,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,970.05 : 171,094.19 = 70,272.45 : x
  2. Step 2: Convert to fraction form
    123,970.05/171,094.19 = 70,272.45/x
  3. Step 3: Cross multiply
    123,970.05x = 171,094.19 × 70,272.45
  4. Step 4: Simplify right side
    123,970.05x = 12,023,207,560.70
  5. Step 5: Solve for x
    x = 12,023,207,560.70/123,970.05
  6. Step 6: Final answer
    x = 96,984.78

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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.