Home / 122,665.60-183,998.40-107,113.60

Finding the Fourth Proportional to 122,665.60, 183,998.40 and 107,113.60

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Solution

The fourth proportional to 122,665.60, 183,998.40 and 107,113.60 is: 160,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,665.60 : 183,998.40 = 107,113.60 : x
  2. Step 2: Convert to fraction form
    122,665.60/183,998.40 = 107,113.60/x
  3. Step 3: Cross multiply
    122,665.60x = 183,998.40 × 107,113.60
  4. Step 4: Simplify right side
    122,665.60x = 19,708,731,018.24
  5. Step 5: Solve for x
    x = 19,708,731,018.24/122,665.60
  6. Step 6: Final answer
    x = 160,670.40

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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.