Home / 100,298.82-149,551.53-97,543.20

Finding the Fourth Proportional to 100,298.82, 149,551.53 and 97,543.20

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Solution

The fourth proportional to 100,298.82, 149,551.53 and 97,543.20 is: 145,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,298.82 : 149,551.53 = 97,543.20 : x
  2. Step 2: Convert to fraction form
    100,298.82/149,551.53 = 97,543.20/x
  3. Step 3: Cross multiply
    100,298.82x = 149,551.53 × 97,543.20
  4. Step 4: Simplify right side
    100,298.82x = 14,587,734,801.10
  5. Step 5: Solve for x
    x = 14,587,734,801.10/100,298.82
  6. Step 6: Final answer
    x = 145,442.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.