Home / 162,336.99-243,558.05-78,086.19

Finding the Fourth Proportional to 162,336.99, 243,558.05 and 78,086.19

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Solution

The fourth proportional to 162,336.99, 243,558.05 and 78,086.19 is: 117,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,336.99 : 243,558.05 = 78,086.19 : x
  2. Step 2: Convert to fraction form
    162,336.99/243,558.05 = 78,086.19/x
  3. Step 3: Cross multiply
    162,336.99x = 243,558.05 × 78,086.19
  4. Step 4: Simplify right side
    162,336.99x = 19,018,520,714.77
  5. Step 5: Solve for x
    x = 19,018,520,714.77/162,336.99
  6. Step 6: Final answer
    x = 117,154.57

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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.