Home / 151,698.22-209,356.95-83,729.90

Finding the Fourth Proportional to 151,698.22, 209,356.95 and 83,729.90

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Solution

The fourth proportional to 151,698.22, 209,356.95 and 83,729.90 is: 115,554.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,698.22 : 209,356.95 = 83,729.90 : x
  2. Step 2: Convert to fraction form
    151,698.22/209,356.95 = 83,729.90/x
  3. Step 3: Cross multiply
    151,698.22x = 209,356.95 × 83,729.90
  4. Step 4: Simplify right side
    151,698.22x = 17,529,437,325.18
  5. Step 5: Solve for x
    x = 17,529,437,325.18/151,698.22
  6. Step 6: Final answer
    x = 115,554.67

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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.