Home / 139,516.23-192,538.98-79,088.05

Finding the Fourth Proportional to 139,516.23, 192,538.98 and 79,088.05

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Solution

The fourth proportional to 139,516.23, 192,538.98 and 79,088.05 is: 109,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,516.23 : 192,538.98 = 79,088.05 : x
  2. Step 2: Convert to fraction form
    139,516.23/192,538.98 = 79,088.05/x
  3. Step 3: Cross multiply
    139,516.23x = 192,538.98 × 79,088.05
  4. Step 4: Simplify right side
    139,516.23x = 15,227,532,477.19
  5. Step 5: Solve for x
    x = 15,227,532,477.19/139,516.23
  6. Step 6: Final answer
    x = 109,145.24

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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.