Home / 149,445.10-206,230.93-81,459.47

Finding the Fourth Proportional to 149,445.10, 206,230.93 and 81,459.47

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Solution

The fourth proportional to 149,445.10, 206,230.93 and 81,459.47 is: 112,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,445.10 : 206,230.93 = 81,459.47 : x
  2. Step 2: Convert to fraction form
    149,445.10/206,230.93 = 81,459.47/x
  3. Step 3: Cross multiply
    149,445.10x = 206,230.93 × 81,459.47
  4. Step 4: Simplify right side
    149,445.10x = 16,799,462,567.34
  5. Step 5: Solve for x
    x = 16,799,462,567.34/149,445.10
  6. Step 6: Final answer
    x = 112,412.27

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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.