Home / 147,979.80-221,969.70-54,473.40

Finding the Fourth Proportional to 147,979.80, 221,969.70 and 54,473.40

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Solution

The fourth proportional to 147,979.80, 221,969.70 and 54,473.40 is: 81,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,979.80 : 221,969.70 = 54,473.40 : x
  2. Step 2: Convert to fraction form
    147,979.80/221,969.70 = 54,473.40/x
  3. Step 3: Cross multiply
    147,979.80x = 221,969.70 × 54,473.40
  4. Step 4: Simplify right side
    147,979.80x = 12,091,444,255.98
  5. Step 5: Solve for x
    x = 12,091,444,255.98/147,979.80
  6. Step 6: Final answer
    x = 81,710.10

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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.