Home / 115,939.71-160,010.55-70,644.51

Finding the Fourth Proportional to 115,939.71, 160,010.55 and 70,644.51

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Solution

The fourth proportional to 115,939.71, 160,010.55 and 70,644.51 is: 97,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,939.71 : 160,010.55 = 70,644.51 : x
  2. Step 2: Convert to fraction form
    115,939.71/160,010.55 = 70,644.51/x
  3. Step 3: Cross multiply
    115,939.71x = 160,010.55 × 70,644.51
  4. Step 4: Simplify right side
    115,939.71x = 11,303,866,899.58
  5. Step 5: Solve for x
    x = 11,303,866,899.58/115,939.71
  6. Step 6: Final answer
    x = 97,497.80

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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.