Home / 147,837.80-221,756.70-54,331.40

Finding the Fourth Proportional to 147,837.80, 221,756.70 and 54,331.40

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Solution

The fourth proportional to 147,837.80, 221,756.70 and 54,331.40 is: 81,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,837.80 : 221,756.70 = 54,331.40 : x
  2. Step 2: Convert to fraction form
    147,837.80/221,756.70 = 54,331.40/x
  3. Step 3: Cross multiply
    147,837.80x = 221,756.70 × 54,331.40
  4. Step 4: Simplify right side
    147,837.80x = 12,048,351,970.38
  5. Step 5: Solve for x
    x = 12,048,351,970.38/147,837.80
  6. Step 6: Final answer
    x = 81,497.10

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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.