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Finding the Fourth Proportional to 123,528.70, 185,293.05 and 61,320.70

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Solution

The fourth proportional to 123,528.70, 185,293.05 and 61,320.70 is: 91,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,528.70 : 185,293.05 = 61,320.70 : x
  2. Step 2: Convert to fraction form
    123,528.70/185,293.05 = 61,320.70/x
  3. Step 3: Cross multiply
    123,528.70x = 185,293.05 × 61,320.70
  4. Step 4: Simplify right side
    123,528.70x = 11,362,299,531.14
  5. Step 5: Solve for x
    x = 11,362,299,531.14/123,528.70
  6. Step 6: Final answer
    x = 91,981.05

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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.