Home / 190,547.90-262,938.87-105,664.70

Finding the Fourth Proportional to 190,547.90, 262,938.87 and 105,664.70

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Solution

The fourth proportional to 190,547.90, 262,938.87 and 105,664.70 is: 145,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,547.90 : 262,938.87 = 105,664.70 : x
  2. Step 2: Convert to fraction form
    190,547.90/262,938.87 = 105,664.70/x
  3. Step 3: Cross multiply
    190,547.90x = 262,938.87 × 105,664.70
  4. Step 4: Simplify right side
    190,547.90x = 27,783,356,816.89
  5. Step 5: Solve for x
    x = 27,783,356,816.89/190,547.90
  6. Step 6: Final answer
    x = 145,807.73

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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.