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Finding the Fourth Proportional to 159,409.84, 220,091.46 and 99,070.52

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Solution

The fourth proportional to 159,409.84, 220,091.46 and 99,070.52 is: 136,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,409.84 : 220,091.46 = 99,070.52 : x
  2. Step 2: Convert to fraction form
    159,409.84/220,091.46 = 99,070.52/x
  3. Step 3: Cross multiply
    159,409.84x = 220,091.46 × 99,070.52
  4. Step 4: Simplify right side
    159,409.84x = 21,804,575,389.76
  5. Step 5: Solve for x
    x = 21,804,575,389.76/159,409.84
  6. Step 6: Final answer
    x = 136,783.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.