Home / 190,212.66-262,448.40-112,649.13

Finding the Fourth Proportional to 190,212.66, 262,448.40 and 112,649.13

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Solution

The fourth proportional to 190,212.66, 262,448.40 and 112,649.13 is: 155,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,212.66 : 262,448.40 = 112,649.13 : x
  2. Step 2: Convert to fraction form
    190,212.66/262,448.40 = 112,649.13/x
  3. Step 3: Cross multiply
    190,212.66x = 262,448.40 × 112,649.13
  4. Step 4: Simplify right side
    190,212.66x = 29,564,583,929.89
  5. Step 5: Solve for x
    x = 29,564,583,929.89/190,212.66
  6. Step 6: Final answer
    x = 155,429.11

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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.