Home / 129,899.10-194,848.65-103,655.10

Finding the Fourth Proportional to 129,899.10, 194,848.65 and 103,655.10

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Solution

The fourth proportional to 129,899.10, 194,848.65 and 103,655.10 is: 155,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,899.10 : 194,848.65 = 103,655.10 : x
  2. Step 2: Convert to fraction form
    129,899.10/194,848.65 = 103,655.10/x
  3. Step 3: Cross multiply
    129,899.10x = 194,848.65 × 103,655.10
  4. Step 4: Simplify right side
    129,899.10x = 20,197,056,300.62
  5. Step 5: Solve for x
    x = 20,197,056,300.62/129,899.10
  6. Step 6: Final answer
    x = 155,482.65

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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.