Home / 181,678.60-272,561.10-76,443.40

Finding the Fourth Proportional to 181,678.60, 272,561.10 and 76,443.40

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Solution

The fourth proportional to 181,678.60, 272,561.10 and 76,443.40 is: 114,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,678.60 : 272,561.10 = 76,443.40 : x
  2. Step 2: Convert to fraction form
    181,678.60/272,561.10 = 76,443.40/x
  3. Step 3: Cross multiply
    181,678.60x = 272,561.10 × 76,443.40
  4. Step 4: Simplify right side
    181,678.60x = 20,835,497,191.74
  5. Step 5: Solve for x
    x = 20,835,497,191.74/181,678.60
  6. Step 6: Final answer
    x = 114,683.28

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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.