Home / 161,582.03-242,411.49-81,423.03

Finding the Fourth Proportional to 161,582.03, 242,411.49 and 81,423.03

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Solution

The fourth proportional to 161,582.03, 242,411.49 and 81,423.03 is: 122,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,582.03 : 242,411.49 = 81,423.03 : x
  2. Step 2: Convert to fraction form
    161,582.03/242,411.49 = 81,423.03/x
  3. Step 3: Cross multiply
    161,582.03x = 242,411.49 × 81,423.03
  4. Step 4: Simplify right side
    161,582.03x = 19,737,878,022.61
  5. Step 5: Solve for x
    x = 19,737,878,022.61/161,582.03
  6. Step 6: Final answer
    x = 122,153.92

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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.