Home / 122,102.10-183,043.80-80,002.35

Finding the Fourth Proportional to 122,102.10, 183,043.80 and 80,002.35

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Solution

The fourth proportional to 122,102.10, 183,043.80 and 80,002.35 is: 119,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,102.10 : 183,043.80 = 80,002.35 : x
  2. Step 2: Convert to fraction form
    122,102.10/183,043.80 = 80,002.35/x
  3. Step 3: Cross multiply
    122,102.10x = 183,043.80 × 80,002.35
  4. Step 4: Simplify right side
    122,102.10x = 14,643,934,152.93
  5. Step 5: Solve for x
    x = 14,643,934,152.93/122,102.10
  6. Step 6: Final answer
    x = 119,931.88

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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.