Home / 128,875.24-193,215.66-84,513.16

Finding the Fourth Proportional to 128,875.24, 193,215.66 and 84,513.16

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Solution

The fourth proportional to 128,875.24, 193,215.66 and 84,513.16 is: 126,706.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,875.24 : 193,215.66 = 84,513.16 : x
  2. Step 2: Convert to fraction form
    128,875.24/193,215.66 = 84,513.16/x
  3. Step 3: Cross multiply
    128,875.24x = 193,215.66 × 84,513.16
  4. Step 4: Simplify right side
    128,875.24x = 16,329,265,988.09
  5. Step 5: Solve for x
    x = 16,329,265,988.09/128,875.24
  6. Step 6: Final answer
    x = 126,706.00

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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.