Home / 117,330.86-162,050.22-79,539.50

Finding the Fourth Proportional to 117,330.86, 162,050.22 and 79,539.50

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Solution

The fourth proportional to 117,330.86, 162,050.22 and 79,539.50 is: 109,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,330.86 : 162,050.22 = 79,539.50 : x
  2. Step 2: Convert to fraction form
    117,330.86/162,050.22 = 79,539.50/x
  3. Step 3: Cross multiply
    117,330.86x = 162,050.22 × 79,539.50
  4. Step 4: Simplify right side
    117,330.86x = 12,889,392,663.44
  5. Step 5: Solve for x
    x = 12,889,392,663.44/117,330.86
  6. Step 6: Final answer
    x = 109,855.10

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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.