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Finding the Fourth Proportional to 118,710.42, 163,814.14 and 64,985.14

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Solution

The fourth proportional to 118,710.42, 163,814.14 and 64,985.14 is: 89,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,710.42 : 163,814.14 = 64,985.14 : x
  2. Step 2: Convert to fraction form
    118,710.42/163,814.14 = 64,985.14/x
  3. Step 3: Cross multiply
    118,710.42x = 163,814.14 × 64,985.14
  4. Step 4: Simplify right side
    118,710.42x = 10,645,484,821.88
  5. Step 5: Solve for x
    x = 10,645,484,821.88/118,710.42
  6. Step 6: Final answer
    x = 89,676.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.