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Finding the Fourth Proportional to 178,833.93, 268,075.93 and 85,405.29

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Solution

The fourth proportional to 178,833.93, 268,075.93 and 85,405.29 is: 128,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,833.93 : 268,075.93 = 85,405.29 : x
  2. Step 2: Convert to fraction form
    178,833.93/268,075.93 = 85,405.29/x
  3. Step 3: Cross multiply
    178,833.93x = 268,075.93 × 85,405.29
  4. Step 4: Simplify right side
    178,833.93x = 22,895,102,543.67
  5. Step 5: Solve for x
    x = 22,895,102,543.67/178,833.93
  6. Step 6: Final answer
    x = 128,024.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.