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Finding the Fourth Proportional to 161,590.95, 242,421.16 and 80,582.12

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Solution

The fourth proportional to 161,590.95, 242,421.16 and 80,582.12 is: 120,890.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,590.95 : 242,421.16 = 80,582.12 : x
  2. Step 2: Convert to fraction form
    161,590.95/242,421.16 = 80,582.12/x
  3. Step 3: Cross multiply
    161,590.95x = 242,421.16 × 80,582.12
  4. Step 4: Simplify right side
    161,590.95x = 19,534,811,005.66
  5. Step 5: Solve for x
    x = 19,534,811,005.66/161,590.95
  6. Step 6: Final answer
    x = 120,890.50

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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.