Home / 117,563.87-162,263.95-77,281.34

Finding the Fourth Proportional to 117,563.87, 162,263.95 and 77,281.34

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Solution

The fourth proportional to 117,563.87, 162,263.95 and 77,281.34 is: 106,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,563.87 : 162,263.95 = 77,281.34 : x
  2. Step 2: Convert to fraction form
    117,563.87/162,263.95 = 77,281.34/x
  3. Step 3: Cross multiply
    117,563.87x = 162,263.95 × 77,281.34
  4. Step 4: Simplify right side
    117,563.87x = 12,539,974,485.17
  5. Step 5: Solve for x
    x = 12,539,974,485.17/117,563.87
  6. Step 6: Final answer
    x = 106,665.21

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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.