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Finding the Fourth Proportional to 101,941.70, 152,912.55 and 70,448.90

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Solution

The fourth proportional to 101,941.70, 152,912.55 and 70,448.90 is: 105,673.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,941.70 : 152,912.55 = 70,448.90 : x
  2. Step 2: Convert to fraction form
    101,941.70/152,912.55 = 70,448.90/x
  3. Step 3: Cross multiply
    101,941.70x = 152,912.55 × 70,448.90
  4. Step 4: Simplify right side
    101,941.70x = 10,772,520,943.70
  5. Step 5: Solve for x
    x = 10,772,520,943.70/101,941.70
  6. Step 6: Final answer
    x = 105,673.35

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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.