Home / 128,237.05-176,961.63-70,873.41

Finding the Fourth Proportional to 128,237.05, 176,961.63 and 70,873.41

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Solution

The fourth proportional to 128,237.05, 176,961.63 and 70,873.41 is: 97,802.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,237.05 : 176,961.63 = 70,873.41 : x
  2. Step 2: Convert to fraction form
    128,237.05/176,961.63 = 70,873.41/x
  3. Step 3: Cross multiply
    128,237.05x = 176,961.63 × 70,873.41
  4. Step 4: Simplify right side
    128,237.05x = 12,541,874,157.26
  5. Step 5: Solve for x
    x = 12,541,874,157.26/128,237.05
  6. Step 6: Final answer
    x = 97,802.27

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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.