Home / 123,886.24-170,967.36-70,172.80

Finding the Fourth Proportional to 123,886.24, 170,967.36 and 70,172.80

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Solution

The fourth proportional to 123,886.24, 170,967.36 and 70,172.80 is: 96,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,886.24 : 170,967.36 = 70,172.80 : x
  2. Step 2: Convert to fraction form
    123,886.24/170,967.36 = 70,172.80/x
  3. Step 3: Cross multiply
    123,886.24x = 170,967.36 × 70,172.80
  4. Step 4: Simplify right side
    123,886.24x = 11,997,258,359.81
  5. Step 5: Solve for x
    x = 11,997,258,359.81/123,886.24
  6. Step 6: Final answer
    x = 96,840.93

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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.