Home / 160,727.40-221,809.05-89,114.07

Finding the Fourth Proportional to 160,727.40, 221,809.05 and 89,114.07

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Solution

The fourth proportional to 160,727.40, 221,809.05 and 89,114.07 is: 122,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,727.40 : 221,809.05 = 89,114.07 : x
  2. Step 2: Convert to fraction form
    160,727.40/221,809.05 = 89,114.07/x
  3. Step 3: Cross multiply
    160,727.40x = 221,809.05 × 89,114.07
  4. Step 4: Simplify right side
    160,727.40x = 19,766,307,208.33
  5. Step 5: Solve for x
    x = 19,766,307,208.33/160,727.40
  6. Step 6: Final answer
    x = 122,980.32

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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.