Home / 122,886.10-184,329.15-39,780.10

Finding the Fourth Proportional to 122,886.10, 184,329.15 and 39,780.10

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Solution

The fourth proportional to 122,886.10, 184,329.15 and 39,780.10 is: 59,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,886.10 : 184,329.15 = 39,780.10 : x
  2. Step 2: Convert to fraction form
    122,886.10/184,329.15 = 39,780.10/x
  3. Step 3: Cross multiply
    122,886.10x = 184,329.15 × 39,780.10
  4. Step 4: Simplify right side
    122,886.10x = 7,332,632,019.92
  5. Step 5: Solve for x
    x = 7,332,632,019.92/122,886.10
  6. Step 6: Final answer
    x = 59,670.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.