Home / 272,021.52-375,378.32-151,161.72

Finding the Fourth Proportional to 272,021.52, 375,378.32 and 151,161.72

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Solution

The fourth proportional to 272,021.52, 375,378.32 and 151,161.72 is: 208,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,021.52 : 375,378.32 = 151,161.72 : x
  2. Step 2: Convert to fraction form
    272,021.52/375,378.32 = 151,161.72/x
  3. Step 3: Cross multiply
    272,021.52x = 375,378.32 × 151,161.72
  4. Step 4: Simplify right side
    272,021.52x = 56,742,832,501.91
  5. Step 5: Solve for x
    x = 56,742,832,501.91/272,021.52
  6. Step 6: Final answer
    x = 208,596.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.