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Finding the Fourth Proportional to 144,030.60, 216,110.70 and 65,104.20

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Solution

The fourth proportional to 144,030.60, 216,110.70 and 65,104.20 is: 97,685.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,030.60 : 216,110.70 = 65,104.20 : x
  2. Step 2: Convert to fraction form
    144,030.60/216,110.70 = 65,104.20/x
  3. Step 3: Cross multiply
    144,030.60x = 216,110.70 × 65,104.20
  4. Step 4: Simplify right side
    144,030.60x = 14,069,714,234.94
  5. Step 5: Solve for x
    x = 14,069,714,234.94/144,030.60
  6. Step 6: Final answer
    x = 97,685.59

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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.