Home / 132,768.18-183,136.36-79,013.06

Finding the Fourth Proportional to 132,768.18, 183,136.36 and 79,013.06

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Solution

The fourth proportional to 132,768.18, 183,136.36 and 79,013.06 is: 108,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,768.18 : 183,136.36 = 79,013.06 : x
  2. Step 2: Convert to fraction form
    132,768.18/183,136.36 = 79,013.06/x
  3. Step 3: Cross multiply
    132,768.18x = 183,136.36 × 79,013.06
  4. Step 4: Simplify right side
    132,768.18x = 14,470,164,200.86
  5. Step 5: Solve for x
    x = 14,470,164,200.86/132,768.18
  6. Step 6: Final answer
    x = 108,988.19

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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.