Home / 103,528.02-155,292.03-82,653.78

Finding the Fourth Proportional to 103,528.02, 155,292.03 and 82,653.78

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Solution

The fourth proportional to 103,528.02, 155,292.03 and 82,653.78 is: 123,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,528.02 : 155,292.03 = 82,653.78 : x
  2. Step 2: Convert to fraction form
    103,528.02/155,292.03 = 82,653.78/x
  3. Step 3: Cross multiply
    103,528.02x = 155,292.03 × 82,653.78
  4. Step 4: Simplify right side
    103,528.02x = 12,835,473,283.37
  5. Step 5: Solve for x
    x = 12,835,473,283.37/103,528.02
  6. Step 6: Final answer
    x = 123,980.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.