Home / 190,384.71-262,732.47-105,503.19

Finding the Fourth Proportional to 190,384.71, 262,732.47 and 105,503.19

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Solution

The fourth proportional to 190,384.71, 262,732.47 and 105,503.19 is: 145,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,384.71 : 262,732.47 = 105,503.19 : x
  2. Step 2: Convert to fraction form
    190,384.71/262,732.47 = 105,503.19/x
  3. Step 3: Cross multiply
    190,384.71x = 262,732.47 × 105,503.19
  4. Step 4: Simplify right side
    190,384.71x = 27,719,113,701.58
  5. Step 5: Solve for x
    x = 27,719,113,701.58/190,384.71
  6. Step 6: Final answer
    x = 145,595.27

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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.