Home / 130,692.81-196,059.71-55,813.35

Finding the Fourth Proportional to 130,692.81, 196,059.71 and 55,813.35

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Solution

The fourth proportional to 130,692.81, 196,059.71 and 55,813.35 is: 83,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,692.81 : 196,059.71 = 55,813.35 : x
  2. Step 2: Convert to fraction form
    130,692.81/196,059.71 = 55,813.35/x
  3. Step 3: Cross multiply
    130,692.81x = 196,059.71 × 55,813.35
  4. Step 4: Simplify right side
    130,692.81x = 10,942,747,955.76
  5. Step 5: Solve for x
    x = 10,942,747,955.76/130,692.81
  6. Step 6: Final answer
    x = 83,728.77

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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.