Home / 120,623.93-181,218.63-113,807.40

Finding the Fourth Proportional to 120,623.93, 181,218.63 and 113,807.40

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Solution

The fourth proportional to 120,623.93, 181,218.63 and 113,807.40 is: 170,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,623.93 : 181,218.63 = 113,807.40 : x
  2. Step 2: Convert to fraction form
    120,623.93/181,218.63 = 113,807.40/x
  3. Step 3: Cross multiply
    120,623.93x = 181,218.63 × 113,807.40
  4. Step 4: Simplify right side
    120,623.93x = 20,624,021,111.86
  5. Step 5: Solve for x
    x = 20,624,021,111.86/120,623.93
  6. Step 6: Final answer
    x = 170,977.86

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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.