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Finding the Fourth Proportional to 101,235.40, 151,856.70 and 31,114.60

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Solution

The fourth proportional to 101,235.40, 151,856.70 and 31,114.60 is: 46,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,235.40 : 151,856.70 = 31,114.60 : x
  2. Step 2: Convert to fraction form
    101,235.40/151,856.70 = 31,114.60/x
  3. Step 3: Cross multiply
    101,235.40x = 151,856.70 × 31,114.60
  4. Step 4: Simplify right side
    101,235.40x = 4,724,960,477.82
  5. Step 5: Solve for x
    x = 4,724,960,477.82/101,235.40
  6. Step 6: Final answer
    x = 46,673.01

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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.