Home / 161,670.35-242,399.91-77,427.77

Finding the Fourth Proportional to 161,670.35, 242,399.91 and 77,427.77

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Solution

The fourth proportional to 161,670.35, 242,399.91 and 77,427.77 is: 116,091.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,670.35 : 242,399.91 = 77,427.77 : x
  2. Step 2: Convert to fraction form
    161,670.35/242,399.91 = 77,427.77/x
  3. Step 3: Cross multiply
    161,670.35x = 242,399.91 × 77,427.77
  4. Step 4: Simplify right side
    161,670.35x = 18,768,484,479.50
  5. Step 5: Solve for x
    x = 18,768,484,479.50/161,670.35
  6. Step 6: Final answer
    x = 116,091.07

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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.