Home / 130,072.95-195,128.01-40,123.23

Finding the Fourth Proportional to 130,072.95, 195,128.01 and 40,123.23

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Solution

The fourth proportional to 130,072.95, 195,128.01 and 40,123.23 is: 60,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,072.95 : 195,128.01 = 40,123.23 : x
  2. Step 2: Convert to fraction form
    130,072.95/195,128.01 = 40,123.23/x
  3. Step 3: Cross multiply
    130,072.95x = 195,128.01 × 40,123.23
  4. Step 4: Simplify right side
    130,072.95x = 7,829,166,024.67
  5. Step 5: Solve for x
    x = 7,829,166,024.67/130,072.95
  6. Step 6: Final answer
    x = 60,190.58

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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.