Home / 105,239.56-145,230.06-57,495.64

Finding the Fourth Proportional to 105,239.56, 145,230.06 and 57,495.64

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Solution

The fourth proportional to 105,239.56, 145,230.06 and 57,495.64 is: 79,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,239.56 : 145,230.06 = 57,495.64 : x
  2. Step 2: Convert to fraction form
    105,239.56/145,230.06 = 57,495.64/x
  3. Step 3: Cross multiply
    105,239.56x = 145,230.06 × 57,495.64
  4. Step 4: Simplify right side
    105,239.56x = 8,350,095,246.94
  5. Step 5: Solve for x
    x = 8,350,095,246.94/105,239.56
  6. Step 6: Final answer
    x = 79,343.69

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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.