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Finding the Fourth Proportional to 104,690.30, 144,459.50 and 70,772.58

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Solution

The fourth proportional to 104,690.30, 144,459.50 and 70,772.58 is: 97,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,690.30 : 144,459.50 = 70,772.58 : x
  2. Step 2: Convert to fraction form
    104,690.30/144,459.50 = 70,772.58/x
  3. Step 3: Cross multiply
    104,690.30x = 144,459.50 × 70,772.58
  4. Step 4: Simplify right side
    104,690.30x = 10,223,771,166.65
  5. Step 5: Solve for x
    x = 10,223,771,166.65/104,690.30
  6. Step 6: Final answer
    x = 97,657.30

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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.