Home / 120,740.60-181,110.90-73,501.40

Finding the Fourth Proportional to 120,740.60, 181,110.90 and 73,501.40

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Solution

The fourth proportional to 120,740.60, 181,110.90 and 73,501.40 is: 110,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,740.60 : 181,110.90 = 73,501.40 : x
  2. Step 2: Convert to fraction form
    120,740.60/181,110.90 = 73,501.40/x
  3. Step 3: Cross multiply
    120,740.60x = 181,110.90 × 73,501.40
  4. Step 4: Simplify right side
    120,740.60x = 13,311,904,705.26
  5. Step 5: Solve for x
    x = 13,311,904,705.26/120,740.60
  6. Step 6: Final answer
    x = 110,252.10

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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.