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Finding the Fourth Proportional to 117,017.96, 161,484.30 and 63,302.85

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Solution

The fourth proportional to 117,017.96, 161,484.30 and 63,302.85 is: 87,357.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,017.96 : 161,484.30 = 63,302.85 : x
  2. Step 2: Convert to fraction form
    117,017.96/161,484.30 = 63,302.85/x
  3. Step 3: Cross multiply
    117,017.96x = 161,484.30 × 63,302.85
  4. Step 4: Simplify right side
    117,017.96x = 10,222,416,420.26
  5. Step 5: Solve for x
    x = 10,222,416,420.26/117,017.96
  6. Step 6: Final answer
    x = 87,357.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.