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Finding the Fourth Proportional to 130,588.50, 196,064.34 and 67,455.28

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Solution

The fourth proportional to 130,588.50, 196,064.34 and 67,455.28 is: 101,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,588.50 : 196,064.34 = 67,455.28 : x
  2. Step 2: Convert to fraction form
    130,588.50/196,064.34 = 67,455.28/x
  3. Step 3: Cross multiply
    130,588.50x = 196,064.34 × 67,455.28
  4. Step 4: Simplify right side
    130,588.50x = 13,225,574,952.72
  5. Step 5: Solve for x
    x = 13,225,574,952.72/130,588.50
  6. Step 6: Final answer
    x = 101,276.72

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