Home / 120,740.60-181,143.30-107,683.40

Finding the Fourth Proportional to 120,740.60, 181,143.30 and 107,683.40

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Solution

The fourth proportional to 120,740.60, 181,143.30 and 107,683.40 is: 161,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,740.60 : 181,143.30 = 107,683.40 : x
  2. Step 2: Convert to fraction form
    120,740.60/181,143.30 = 107,683.40/x
  3. Step 3: Cross multiply
    120,740.60x = 181,143.30 × 107,683.40
  4. Step 4: Simplify right side
    120,740.60x = 19,506,126,431.22
  5. Step 5: Solve for x
    x = 19,506,126,431.22/120,740.60
  6. Step 6: Final answer
    x = 161,554.00

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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.