Home / 190,780.53-263,263.95-105,890.91

Finding the Fourth Proportional to 190,780.53, 263,263.95 and 105,890.91

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Solution

The fourth proportional to 190,780.53, 263,263.95 and 105,890.91 is: 146,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,780.53 : 263,263.95 = 105,890.91 : x
  2. Step 2: Convert to fraction form
    190,780.53/263,263.95 = 105,890.91/x
  3. Step 3: Cross multiply
    190,780.53x = 263,263.95 × 105,890.91
  4. Step 4: Simplify right side
    190,780.53x = 27,877,258,248.45
  5. Step 5: Solve for x
    x = 27,877,258,248.45/190,780.53
  6. Step 6: Final answer
    x = 146,122.14

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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.