Home / 163,814.40-245,721.47-45,485.69

Finding the Fourth Proportional to 163,814.40, 245,721.47 and 45,485.69

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Solution

The fourth proportional to 163,814.40, 245,721.47 and 45,485.69 is: 68,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,814.40 : 245,721.47 = 45,485.69 : x
  2. Step 2: Convert to fraction form
    163,814.40/245,721.47 = 45,485.69/x
  3. Step 3: Cross multiply
    163,814.40x = 245,721.47 × 45,485.69
  4. Step 4: Simplify right side
    163,814.40x = 11,176,809,154.73
  5. Step 5: Solve for x
    x = 11,176,809,154.73/163,814.40
  6. Step 6: Final answer
    x = 68,228.49

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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.