Home / 171,608.81-236,557.64-120,478.10

Finding the Fourth Proportional to 171,608.81, 236,557.64 and 120,478.10

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Solution

The fourth proportional to 171,608.81, 236,557.64 and 120,478.10 is: 166,075.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,608.81 : 236,557.64 = 120,478.10 : x
  2. Step 2: Convert to fraction form
    171,608.81/236,557.64 = 120,478.10/x
  3. Step 3: Cross multiply
    171,608.81x = 236,557.64 × 120,478.10
  4. Step 4: Simplify right side
    171,608.81x = 28,500,013,222.51
  5. Step 5: Solve for x
    x = 28,500,013,222.51/171,608.81
  6. Step 6: Final answer
    x = 166,075.47

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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.