Home / 130,011.10-194,688.60-103,767.10

Finding the Fourth Proportional to 130,011.10, 194,688.60 and 103,767.10

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Solution

The fourth proportional to 130,011.10, 194,688.60 and 103,767.10 is: 155,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,011.10 : 194,688.60 = 103,767.10 : x
  2. Step 2: Convert to fraction form
    130,011.10/194,688.60 = 103,767.10/x
  3. Step 3: Cross multiply
    130,011.10x = 194,688.60 × 103,767.10
  4. Step 4: Simplify right side
    130,011.10x = 20,202,271,425.06
  5. Step 5: Solve for x
    x = 20,202,271,425.06/130,011.10
  6. Step 6: Final answer
    x = 155,388.82

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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.