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Finding the Fourth Proportional to 159,334.76, 219,790.86 and 99,615.08

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Solution

The fourth proportional to 159,334.76, 219,790.86 and 99,615.08 is: 137,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,334.76 : 219,790.86 = 99,615.08 : x
  2. Step 2: Convert to fraction form
    159,334.76/219,790.86 = 99,615.08/x
  3. Step 3: Cross multiply
    159,334.76x = 219,790.86 × 99,615.08
  4. Step 4: Simplify right side
    159,334.76x = 21,894,484,102.17
  5. Step 5: Solve for x
    x = 21,894,484,102.17/159,334.76
  6. Step 6: Final answer
    x = 137,411.85

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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.