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Finding the Fourth Proportional to 113,912.48, 157,188.48 and 66,164.60

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Solution

The fourth proportional to 113,912.48, 157,188.48 and 66,164.60 is: 91,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,912.48 : 157,188.48 = 66,164.60 : x
  2. Step 2: Convert to fraction form
    113,912.48/157,188.48 = 66,164.60/x
  3. Step 3: Cross multiply
    113,912.48x = 157,188.48 × 66,164.60
  4. Step 4: Simplify right side
    113,912.48x = 10,400,312,903.81
  5. Step 5: Solve for x
    x = 10,400,312,903.81/113,912.48
  6. Step 6: Final answer
    x = 91,300.91

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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.