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Finding the Fourth Proportional to 106,547.40, 159,710.40 and 43,340.40

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Solution

The fourth proportional to 106,547.40, 159,710.40 and 43,340.40 is: 64,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,547.40 : 159,710.40 = 43,340.40 : x
  2. Step 2: Convert to fraction form
    106,547.40/159,710.40 = 43,340.40/x
  3. Step 3: Cross multiply
    106,547.40x = 159,710.40 × 43,340.40
  4. Step 4: Simplify right side
    106,547.40x = 6,921,912,620.16
  5. Step 5: Solve for x
    x = 6,921,912,620.16/106,547.40
  6. Step 6: Final answer
    x = 64,965.57

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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.