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Finding the Fourth Proportional to 98,950.60, 148,134.30 and 65,708.20

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Solution

The fourth proportional to 98,950.60, 148,134.30 and 65,708.20 is: 98,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,950.60 : 148,134.30 = 65,708.20 : x
  2. Step 2: Convert to fraction form
    98,950.60/148,134.30 = 65,708.20/x
  3. Step 3: Cross multiply
    98,950.60x = 148,134.30 × 65,708.20
  4. Step 4: Simplify right side
    98,950.60x = 9,733,638,211.26
  5. Step 5: Solve for x
    x = 9,733,638,211.26/98,950.60
  6. Step 6: Final answer
    x = 98,368.66

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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.