Home / 142,622.36-213,938.50-67,703.91

Finding the Fourth Proportional to 142,622.36, 213,938.50 and 67,703.91

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Solution

The fourth proportional to 142,622.36, 213,938.50 and 67,703.91 is: 101,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,622.36 : 213,938.50 = 67,703.91 : x
  2. Step 2: Convert to fraction form
    142,622.36/213,938.50 = 67,703.91/x
  3. Step 3: Cross multiply
    142,622.36x = 213,938.50 × 67,703.91
  4. Step 4: Simplify right side
    142,622.36x = 14,484,472,949.54
  5. Step 5: Solve for x
    x = 14,484,472,949.54/142,622.36
  6. Step 6: Final answer
    x = 101,558.22

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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.