Home / 122,117.21-183,188.25-42,144.77

Finding the Fourth Proportional to 122,117.21, 183,188.25 and 42,144.77

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Solution

The fourth proportional to 122,117.21, 183,188.25 and 42,144.77 is: 63,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117.21 : 183,188.25 = 42,144.77 : x
  2. Step 2: Convert to fraction form
    122,117.21/183,188.25 = 42,144.77/x
  3. Step 3: Cross multiply
    122,117.21x = 183,188.25 × 42,144.77
  4. Step 4: Simplify right side
    122,117.21x = 7,720,426,749.92
  5. Step 5: Solve for x
    x = 7,720,426,749.92/122,117.21
  6. Step 6: Final answer
    x = 63,221.45

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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.