Home / 142,623.36-213,940-67,704.91

Finding the Fourth Proportional to 142,623.36, 213,940 and 67,704.91

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Solution

The fourth proportional to 142,623.36, 213,940 and 67,704.91 is: 101,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,623.36 : 213,940 = 67,704.91 : x
  2. Step 2: Convert to fraction form
    142,623.36/213,940 = 67,704.91/x
  3. Step 3: Cross multiply
    142,623.36x = 213,940 × 67,704.91
  4. Step 4: Simplify right side
    142,623.36x = 14,484,788,445.40
  5. Step 5: Solve for x
    x = 14,484,788,445.40/142,623.36
  6. Step 6: Final answer
    x = 101,559.72

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1.5x scale

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.