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Finding the Fourth Proportional to 147,008.81, 202,657.42 and 103,912.26

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Solution

The fourth proportional to 147,008.81, 202,657.42 and 103,912.26 is: 143,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,008.81 : 202,657.42 = 103,912.26 : x
  2. Step 2: Convert to fraction form
    147,008.81/202,657.42 = 103,912.26/x
  3. Step 3: Cross multiply
    147,008.81x = 202,657.42 × 103,912.26
  4. Step 4: Simplify right side
    147,008.81x = 21,058,590,258.19
  5. Step 5: Solve for x
    x = 21,058,590,258.19/147,008.81
  6. Step 6: Final answer
    x = 143,247.13

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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.