Home / 105,243.06-145,234.89-57,499.14

Finding the Fourth Proportional to 105,243.06, 145,234.89 and 57,499.14

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Solution

The fourth proportional to 105,243.06, 145,234.89 and 57,499.14 is: 79,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,243.06 : 145,234.89 = 57,499.14 : x
  2. Step 2: Convert to fraction form
    105,243.06/145,234.89 = 57,499.14/x
  3. Step 3: Cross multiply
    105,243.06x = 145,234.89 × 57,499.14
  4. Step 4: Simplify right side
    105,243.06x = 8,350,881,272.99
  5. Step 5: Solve for x
    x = 8,350,881,272.99/105,243.06
  6. Step 6: Final answer
    x = 79,348.52

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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.