Home / 99,829.56-149,751.51-31,435.23

Finding the Fourth Proportional to 99,829.56, 149,751.51 and 31,435.23

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Solution

The fourth proportional to 99,829.56, 149,751.51 and 31,435.23 is: 47,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,829.56 : 149,751.51 = 31,435.23 : x
  2. Step 2: Convert to fraction form
    99,829.56/149,751.51 = 31,435.23/x
  3. Step 3: Cross multiply
    99,829.56x = 149,751.51 × 31,435.23
  4. Step 4: Simplify right side
    99,829.56x = 4,707,473,159.70
  5. Step 5: Solve for x
    x = 4,707,473,159.70/99,829.56
  6. Step 6: Final answer
    x = 47,155.10

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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.