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Finding the Fourth Proportional to 120,344.84, 166,094.28 and 75,030.20

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Solution

The fourth proportional to 120,344.84, 166,094.28 and 75,030.20 is: 103,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,344.84 : 166,094.28 = 75,030.20 : x
  2. Step 2: Convert to fraction form
    120,344.84/166,094.28 = 75,030.20/x
  3. Step 3: Cross multiply
    120,344.84x = 166,094.28 × 75,030.20
  4. Step 4: Simplify right side
    120,344.84x = 12,462,087,047.26
  5. Step 5: Solve for x
    x = 12,462,087,047.26/120,344.84
  6. Step 6: Final answer
    x = 103,553.15

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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.