Home / 130,072.50-195,127.35-40,122.81

Finding the Fourth Proportional to 130,072.50, 195,127.35 and 40,122.81

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Solution

The fourth proportional to 130,072.50, 195,127.35 and 40,122.81 is: 60,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,072.50 : 195,127.35 = 40,122.81 : x
  2. Step 2: Convert to fraction form
    130,072.50/195,127.35 = 40,122.81/x
  3. Step 3: Cross multiply
    130,072.50x = 195,127.35 × 40,122.81
  4. Step 4: Simplify right side
    130,072.50x = 7,829,057,977.36
  5. Step 5: Solve for x
    x = 7,829,057,977.36/130,072.50
  6. Step 6: Final answer
    x = 60,189.95

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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.