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Finding the Fourth Proportional to 159,615.34, 220,111.34 and 135,482.20

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Solution

The fourth proportional to 159,615.34, 220,111.34 and 135,482.20 is: 186,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,615.34 : 220,111.34 = 135,482.20 : x
  2. Step 2: Convert to fraction form
    159,615.34/220,111.34 = 135,482.20/x
  3. Step 3: Cross multiply
    159,615.34x = 220,111.34 × 135,482.20
  4. Step 4: Simplify right side
    159,615.34x = 29,821,168,588.15
  5. Step 5: Solve for x
    x = 29,821,168,588.15/159,615.34
  6. Step 6: Final answer
    x = 186,831.47

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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.