Home / 97,477.84-145,884.07-81,700.68

Finding the Fourth Proportional to 97,477.84, 145,884.07 and 81,700.68

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Solution

The fourth proportional to 97,477.84, 145,884.07 and 81,700.68 is: 122,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,477.84 : 145,884.07 = 81,700.68 : x
  2. Step 2: Convert to fraction form
    97,477.84/145,884.07 = 81,700.68/x
  3. Step 3: Cross multiply
    97,477.84x = 145,884.07 × 81,700.68
  4. Step 4: Simplify right side
    97,477.84x = 11,918,827,720.17
  5. Step 5: Solve for x
    x = 11,918,827,720.17/97,477.84
  6. Step 6: Final answer
    x = 122,272.18

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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.