Home / 97,476.21-145,881.63-81,699.05

Finding the Fourth Proportional to 97,476.21, 145,881.63 and 81,699.05

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Solution

The fourth proportional to 97,476.21, 145,881.63 and 81,699.05 is: 122,269.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,476.21 : 145,881.63 = 81,699.05 : x
  2. Step 2: Convert to fraction form
    97,476.21/145,881.63 = 81,699.05/x
  3. Step 3: Cross multiply
    97,476.21x = 145,881.63 × 81,699.05
  4. Step 4: Simplify right side
    97,476.21x = 11,918,390,583.45
  5. Step 5: Solve for x
    x = 11,918,390,583.45/97,476.21
  6. Step 6: Final answer
    x = 122,269.74

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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.