Home / 115,365.09-159,203.53-64,377.28

Finding the Fourth Proportional to 115,365.09, 159,203.53 and 64,377.28

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Solution

The fourth proportional to 115,365.09, 159,203.53 and 64,377.28 is: 88,840.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,365.09 : 159,203.53 = 64,377.28 : x
  2. Step 2: Convert to fraction form
    115,365.09/159,203.53 = 64,377.28/x
  3. Step 3: Cross multiply
    115,365.09x = 159,203.53 × 64,377.28
  4. Step 4: Simplify right side
    115,365.09x = 10,249,089,846.65
  5. Step 5: Solve for x
    x = 10,249,089,846.65/115,365.09
  6. Step 6: Final answer
    x = 88,840.48

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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.