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Finding the Fourth Proportional to 148,870.80, 223,302.60 and 89,661.60

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Solution

The fourth proportional to 148,870.80, 223,302.60 and 89,661.60 is: 134,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,870.80 : 223,302.60 = 89,661.60 : x
  2. Step 2: Convert to fraction form
    148,870.80/223,302.60 = 89,661.60/x
  3. Step 3: Cross multiply
    148,870.80x = 223,302.60 × 89,661.60
  4. Step 4: Simplify right side
    148,870.80x = 20,021,668,400.16
  5. Step 5: Solve for x
    x = 20,021,668,400.16/148,870.80
  6. Step 6: Final answer
    x = 134,490.23

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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.