Home / 130,363.07-179,888.60-103,570.43

Finding the Fourth Proportional to 130,363.07, 179,888.60 and 103,570.43

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Solution

The fourth proportional to 130,363.07, 179,888.60 and 103,570.43 is: 142,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,363.07 : 179,888.60 = 103,570.43 : x
  2. Step 2: Convert to fraction form
    130,363.07/179,888.60 = 103,570.43/x
  3. Step 3: Cross multiply
    130,363.07x = 179,888.60 × 103,570.43
  4. Step 4: Simplify right side
    130,363.07x = 18,631,139,136.25
  5. Step 5: Solve for x
    x = 18,631,139,136.25/130,363.07
  6. Step 6: Final answer
    x = 142,917.31

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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.