Home / 123,349.84-170,222.76-66,761.21

Finding the Fourth Proportional to 123,349.84, 170,222.76 and 66,761.21

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Solution

The fourth proportional to 123,349.84, 170,222.76 and 66,761.21 is: 92,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,349.84 : 170,222.76 = 66,761.21 : x
  2. Step 2: Convert to fraction form
    123,349.84/170,222.76 = 66,761.21/x
  3. Step 3: Cross multiply
    123,349.84x = 170,222.76 × 66,761.21
  4. Step 4: Simplify right side
    123,349.84x = 11,364,277,852.70
  5. Step 5: Solve for x
    x = 11,364,277,852.70/123,349.84
  6. Step 6: Final answer
    x = 92,130.46

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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.