Home / 189,239.74-284,056.47-139,376.14

Finding the Fourth Proportional to 189,239.74, 284,056.47 and 139,376.14

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Solution

The fourth proportional to 189,239.74, 284,056.47 and 139,376.14 is: 209,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,239.74 : 284,056.47 = 139,376.14 : x
  2. Step 2: Convert to fraction form
    189,239.74/284,056.47 = 139,376.14/x
  3. Step 3: Cross multiply
    189,239.74x = 284,056.47 × 139,376.14
  4. Step 4: Simplify right side
    189,239.74x = 39,590,694,330.63
  5. Step 5: Solve for x
    x = 39,590,694,330.63/189,239.74
  6. Step 6: Final answer
    x = 209,209.20

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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.