Home / 178,002.75-245,762.73-105,428.98

Finding the Fourth Proportional to 178,002.75, 245,762.73 and 105,428.98

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Solution

The fourth proportional to 178,002.75, 245,762.73 and 105,428.98 is: 145,562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,002.75 : 245,762.73 = 105,428.98 : x
  2. Step 2: Convert to fraction form
    178,002.75/245,762.73 = 105,428.98/x
  3. Step 3: Cross multiply
    178,002.75x = 245,762.73 × 105,428.98
  4. Step 4: Simplify right side
    178,002.75x = 25,910,514,253.12
  5. Step 5: Solve for x
    x = 25,910,514,253.12/178,002.75
  6. Step 6: Final answer
    x = 145,562.43

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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.