Home / 122,991.10-184,486.65-81,000.70

Finding the Fourth Proportional to 122,991.10, 184,486.65 and 81,000.70

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Solution

The fourth proportional to 122,991.10, 184,486.65 and 81,000.70 is: 121,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,991.10 : 184,486.65 = 81,000.70 : x
  2. Step 2: Convert to fraction form
    122,991.10/184,486.65 = 81,000.70/x
  3. Step 3: Cross multiply
    122,991.10x = 184,486.65 × 81,000.70
  4. Step 4: Simplify right side
    122,991.10x = 14,943,547,790.66
  5. Step 5: Solve for x
    x = 14,943,547,790.66/122,991.10
  6. Step 6: Final answer
    x = 121,501.05

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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.