Home / 163,814.19-245,721.38-45,485.53

Finding the Fourth Proportional to 163,814.19, 245,721.38 and 45,485.53

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Solution

The fourth proportional to 163,814.19, 245,721.38 and 45,485.53 is: 68,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,814.19 : 245,721.38 = 45,485.53 : x
  2. Step 2: Convert to fraction form
    163,814.19/245,721.38 = 45,485.53/x
  3. Step 3: Cross multiply
    163,814.19x = 245,721.38 × 45,485.53
  4. Step 4: Simplify right side
    163,814.19x = 11,176,767,201.63
  5. Step 5: Solve for x
    x = 11,176,767,201.63/163,814.19
  6. Step 6: Final answer
    x = 68,228.32

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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.