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Finding the Fourth Proportional to 161,673.35, 242,404.41 and 77,430.77

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Solution

The fourth proportional to 161,673.35, 242,404.41 and 77,430.77 is: 116,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,673.35 : 242,404.41 = 77,430.77 : x
  2. Step 2: Convert to fraction form
    161,673.35/242,404.41 = 77,430.77/x
  3. Step 3: Cross multiply
    161,673.35x = 242,404.41 × 77,430.77
  4. Step 4: Simplify right side
    161,673.35x = 18,769,560,117.70
  5. Step 5: Solve for x
    x = 18,769,560,117.70/161,673.35
  6. Step 6: Final answer
    x = 116,095.57

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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.