Home / 190,780.16-263,276.40-105,897.02

Finding the Fourth Proportional to 190,780.16, 263,276.40 and 105,897.02

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Solution

The fourth proportional to 190,780.16, 263,276.40 and 105,897.02 is: 146,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,780.16 : 263,276.40 = 105,897.02 : x
  2. Step 2: Convert to fraction form
    190,780.16/263,276.40 = 105,897.02/x
  3. Step 3: Cross multiply
    190,780.16x = 263,276.40 × 105,897.02
  4. Step 4: Simplify right side
    190,780.16x = 27,880,186,196.33
  5. Step 5: Solve for x
    x = 27,880,186,196.33/190,780.16
  6. Step 6: Final answer
    x = 146,137.77

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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.