Home / 395,156.34-592,828.38-128,916.90

Finding the Fourth Proportional to 395,156.34, 592,828.38 and 128,916.90

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Solution

The fourth proportional to 395,156.34, 592,828.38 and 128,916.90 is: 193,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,156.34 : 592,828.38 = 128,916.90 : x
  2. Step 2: Convert to fraction form
    395,156.34/592,828.38 = 128,916.90/x
  3. Step 3: Cross multiply
    395,156.34x = 592,828.38 × 128,916.90
  4. Step 4: Simplify right side
    395,156.34x = 76,425,596,981.62
  5. Step 5: Solve for x
    x = 76,425,596,981.62/395,156.34
  6. Step 6: Final answer
    x = 193,405.97

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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.