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Finding the Fourth Proportional to 123,527.70, 185,291.55 and 70,383.60

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Solution

The fourth proportional to 123,527.70, 185,291.55 and 70,383.60 is: 105,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,527.70 : 185,291.55 = 70,383.60 : x
  2. Step 2: Convert to fraction form
    123,527.70/185,291.55 = 70,383.60/x
  3. Step 3: Cross multiply
    123,527.70x = 185,291.55 × 70,383.60
  4. Step 4: Simplify right side
    123,527.70x = 13,041,486,338.58
  5. Step 5: Solve for x
    x = 13,041,486,338.58/123,527.70
  6. Step 6: Final answer
    x = 105,575.40

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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.