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Finding the Fourth Proportional to 105,394.56, 158,091.84 and 43,065

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Solution

The fourth proportional to 105,394.56, 158,091.84 and 43,065 is: 64,597.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,394.56 : 158,091.84 = 43,065 : x
  2. Step 2: Convert to fraction form
    105,394.56/158,091.84 = 43,065/x
  3. Step 3: Cross multiply
    105,394.56x = 158,091.84 × 43,065
  4. Step 4: Simplify right side
    105,394.56x = 6,808,225,089.60
  5. Step 5: Solve for x
    x = 6,808,225,089.60/105,394.56
  6. Step 6: Final answer
    x = 64,597.50

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1.5x scale

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.