Home / 130,469.41-180,047.81-79,482.14

Finding the Fourth Proportional to 130,469.41, 180,047.81 and 79,482.14

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Solution

The fourth proportional to 130,469.41, 180,047.81 and 79,482.14 is: 109,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,469.41 : 180,047.81 = 79,482.14 : x
  2. Step 2: Convert to fraction form
    130,469.41/180,047.81 = 79,482.14/x
  3. Step 3: Cross multiply
    130,469.41x = 180,047.81 × 79,482.14
  4. Step 4: Simplify right side
    130,469.41x = 14,310,583,943.46
  5. Step 5: Solve for x
    x = 14,310,583,943.46/130,469.41
  6. Step 6: Final answer
    x = 109,685.36

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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.