Home / 124,217.48-171,396.51-78,902.84

Finding the Fourth Proportional to 124,217.48, 171,396.51 and 78,902.84

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Solution

The fourth proportional to 124,217.48, 171,396.51 and 78,902.84 is: 108,870.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,217.48 : 171,396.51 = 78,902.84 : x
  2. Step 2: Convert to fraction form
    124,217.48/171,396.51 = 78,902.84/x
  3. Step 3: Cross multiply
    124,217.48x = 171,396.51 × 78,902.84
  4. Step 4: Simplify right side
    124,217.48x = 13,523,671,537.69
  5. Step 5: Solve for x
    x = 13,523,671,537.69/124,217.48
  6. Step 6: Final answer
    x = 108,870.92

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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.