Home / 435,421.93-653,157.21-135,943.87

Finding the Fourth Proportional to 435,421.93, 653,157.21 and 135,943.87

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Solution

The fourth proportional to 435,421.93, 653,157.21 and 135,943.87 is: 203,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,421.93 : 653,157.21 = 135,943.87 : x
  2. Step 2: Convert to fraction form
    435,421.93/653,157.21 = 135,943.87/x
  3. Step 3: Cross multiply
    435,421.93x = 653,157.21 × 135,943.87
  4. Step 4: Simplify right side
    435,421.93x = 88,792,718,845.80
  5. Step 5: Solve for x
    x = 88,792,718,845.80/435,421.93
  6. Step 6: Final answer
    x = 203,923.40

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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.