Home / 105,700.74-145,865.91-57,953.97

Finding the Fourth Proportional to 105,700.74, 145,865.91 and 57,953.97

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Solution

The fourth proportional to 105,700.74, 145,865.91 and 57,953.97 is: 79,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,700.74 : 145,865.91 = 57,953.97 : x
  2. Step 2: Convert to fraction form
    105,700.74/145,865.91 = 57,953.97/x
  3. Step 3: Cross multiply
    105,700.74x = 145,865.91 × 57,953.97
  4. Step 4: Simplify right side
    105,700.74x = 8,453,508,572.16
  5. Step 5: Solve for x
    x = 8,453,508,572.16/105,700.74
  6. Step 6: Final answer
    x = 79,975.87

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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.