Home / 181,430.40-272,145.60-161,385.60

Finding the Fourth Proportional to 181,430.40, 272,145.60 and 161,385.60

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Solution

The fourth proportional to 181,430.40, 272,145.60 and 161,385.60 is: 242,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,430.40 : 272,145.60 = 161,385.60 : x
  2. Step 2: Convert to fraction form
    181,430.40/272,145.60 = 161,385.60/x
  3. Step 3: Cross multiply
    181,430.40x = 272,145.60 × 161,385.60
  4. Step 4: Simplify right side
    181,430.40x = 43,920,380,943.36
  5. Step 5: Solve for x
    x = 43,920,380,943.36/181,430.40
  6. Step 6: Final answer
    x = 242,078.40

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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.