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Finding the Fourth Proportional to 109,597.21, 151,348.63 and 103,626.63

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Solution

The fourth proportional to 109,597.21, 151,348.63 and 103,626.63 is: 143,103.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,597.21 : 151,348.63 = 103,626.63 : x
  2. Step 2: Convert to fraction form
    109,597.21/151,348.63 = 103,626.63/x
  3. Step 3: Cross multiply
    109,597.21x = 151,348.63 × 103,626.63
  4. Step 4: Simplify right side
    109,597.21x = 15,683,748,482.02
  5. Step 5: Solve for x
    x = 15,683,748,482.02/109,597.21
  6. Step 6: Final answer
    x = 143,103.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.