Home / 132,637.98-183,012.03-78,912.50

Finding the Fourth Proportional to 132,637.98, 183,012.03 and 78,912.50

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Solution

The fourth proportional to 132,637.98, 183,012.03 and 78,912.50 is: 108,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,637.98 : 183,012.03 = 78,912.50 : x
  2. Step 2: Convert to fraction form
    132,637.98/183,012.03 = 78,912.50/x
  3. Step 3: Cross multiply
    132,637.98x = 183,012.03 × 78,912.50
  4. Step 4: Simplify right side
    132,637.98x = 14,441,937,668.42
  5. Step 5: Solve for x
    x = 14,441,937,668.42/132,637.98
  6. Step 6: Final answer
    x = 108,882.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.