Home / 147,450.78-221,172.93-42,270.66

Finding the Fourth Proportional to 147,450.78, 221,172.93 and 42,270.66

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Solution

The fourth proportional to 147,450.78, 221,172.93 and 42,270.66 is: 63,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,450.78 : 221,172.93 = 42,270.66 : x
  2. Step 2: Convert to fraction form
    147,450.78/221,172.93 = 42,270.66/x
  3. Step 3: Cross multiply
    147,450.78x = 221,172.93 × 42,270.66
  4. Step 4: Simplify right side
    147,450.78x = 9,349,125,725.23
  5. Step 5: Solve for x
    x = 9,349,125,725.23/147,450.78
  6. Step 6: Final answer
    x = 63,405.06

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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.