Home / 139,349.08-192,302.04-75,685.51

Finding the Fourth Proportional to 139,349.08, 192,302.04 and 75,685.51

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Solution

The fourth proportional to 139,349.08, 192,302.04 and 75,685.51 is: 104,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.08 : 192,302.04 = 75,685.51 : x
  2. Step 2: Convert to fraction form
    139,349.08/192,302.04 = 75,685.51/x
  3. Step 3: Cross multiply
    139,349.08x = 192,302.04 × 75,685.51
  4. Step 4: Simplify right side
    139,349.08x = 14,554,477,971.44
  5. Step 5: Solve for x
    x = 14,554,477,971.44/139,349.08
  6. Step 6: Final answer
    x = 104,446.17

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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.