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Finding the Fourth Proportional to 91,362.82, 136,900.61 and 70,277.41

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Solution

The fourth proportional to 91,362.82, 136,900.61 and 70,277.41 is: 105,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,362.82 : 136,900.61 = 70,277.41 : x
  2. Step 2: Convert to fraction form
    91,362.82/136,900.61 = 70,277.41/x
  3. Step 3: Cross multiply
    91,362.82x = 136,900.61 × 70,277.41
  4. Step 4: Simplify right side
    91,362.82x = 9,621,020,298.22
  5. Step 5: Solve for x
    x = 9,621,020,298.22/91,362.82
  6. Step 6: Final answer
    x = 105,305.64

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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.