Home / 148,005.40-221,570.70-98,141.80

Finding the Fourth Proportional to 148,005.40, 221,570.70 and 98,141.80

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Solution

The fourth proportional to 148,005.40, 221,570.70 and 98,141.80 is: 146,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,005.40 : 221,570.70 = 98,141.80 : x
  2. Step 2: Convert to fraction form
    148,005.40/221,570.70 = 98,141.80/x
  3. Step 3: Cross multiply
    148,005.40x = 221,570.70 × 98,141.80
  4. Step 4: Simplify right side
    148,005.40x = 21,745,347,325.26
  5. Step 5: Solve for x
    x = 21,745,347,325.26/148,005.40
  6. Step 6: Final answer
    x = 146,922.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.