Home / 160,647.20-221,693.60-89,028.40

Finding the Fourth Proportional to 160,647.20, 221,693.60 and 89,028.40

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Solution

The fourth proportional to 160,647.20, 221,693.60 and 89,028.40 is: 122,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,647.20 : 221,693.60 = 89,028.40 : x
  2. Step 2: Convert to fraction form
    160,647.20/221,693.60 = 89,028.40/x
  3. Step 3: Cross multiply
    160,647.20x = 221,693.60 × 89,028.40
  4. Step 4: Simplify right side
    160,647.20x = 19,737,026,498.24
  5. Step 5: Solve for x
    x = 19,737,026,498.24/160,647.20
  6. Step 6: Final answer
    x = 122,859.45

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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.