Home / 122,477.10-183,715.65-80,486.70

Finding the Fourth Proportional to 122,477.10, 183,715.65 and 80,486.70

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Solution

The fourth proportional to 122,477.10, 183,715.65 and 80,486.70 is: 120,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477.10 : 183,715.65 = 80,486.70 : x
  2. Step 2: Convert to fraction form
    122,477.10/183,715.65 = 80,486.70/x
  3. Step 3: Cross multiply
    122,477.10x = 183,715.65 × 80,486.70
  4. Step 4: Simplify right side
    122,477.10x = 14,786,666,406.86
  5. Step 5: Solve for x
    x = 14,786,666,406.86/122,477.10
  6. Step 6: Final answer
    x = 120,730.05

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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.