Home / 99,145.66-137,090.10-97,543.21

Finding the Fourth Proportional to 99,145.66, 137,090.10 and 97,543.21

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Solution

The fourth proportional to 99,145.66, 137,090.10 and 97,543.21 is: 134,874.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,145.66 : 137,090.10 = 97,543.21 : x
  2. Step 2: Convert to fraction form
    99,145.66/137,090.10 = 97,543.21/x
  3. Step 3: Cross multiply
    99,145.66x = 137,090.10 × 97,543.21
  4. Step 4: Simplify right side
    99,145.66x = 13,372,208,413.22
  5. Step 5: Solve for x
    x = 13,372,208,413.22/99,145.66
  6. Step 6: Final answer
    x = 134,874.37

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1.5x scale

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.