Home / 147,428.52-221,011.80-57,450.36

Finding the Fourth Proportional to 147,428.52, 221,011.80 and 57,450.36

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Solution

The fourth proportional to 147,428.52, 221,011.80 and 57,450.36 is: 86,124.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,428.52 : 221,011.80 = 57,450.36 : x
  2. Step 2: Convert to fraction form
    147,428.52/221,011.80 = 57,450.36/x
  3. Step 3: Cross multiply
    147,428.52x = 221,011.80 × 57,450.36
  4. Step 4: Simplify right side
    147,428.52x = 12,697,207,474.25
  5. Step 5: Solve for x
    x = 12,697,207,474.25/147,428.52
  6. Step 6: Final answer
    x = 86,124.50

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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.