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Finding the Fourth Proportional to 192,130.20, 287,828.10 and 103,354.20

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Solution

The fourth proportional to 192,130.20, 287,828.10 and 103,354.20 is: 154,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,130.20 : 287,828.10 = 103,354.20 : x
  2. Step 2: Convert to fraction form
    192,130.20/287,828.10 = 103,354.20/x
  3. Step 3: Cross multiply
    192,130.20x = 287,828.10 × 103,354.20
  4. Step 4: Simplify right side
    192,130.20x = 29,748,243,013.02
  5. Step 5: Solve for x
    x = 29,748,243,013.02/192,130.20
  6. Step 6: Final answer
    x = 154,833.77

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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.