Home / 189,513.07-261,528.08-104,630.13

Finding the Fourth Proportional to 189,513.07, 261,528.08 and 104,630.13

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Solution

The fourth proportional to 189,513.07, 261,528.08 and 104,630.13 is: 144,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,513.07 : 261,528.08 = 104,630.13 : x
  2. Step 2: Convert to fraction form
    189,513.07/261,528.08 = 104,630.13/x
  3. Step 3: Cross multiply
    189,513.07x = 261,528.08 × 104,630.13
  4. Step 4: Simplify right side
    189,513.07x = 27,363,716,485.90
  5. Step 5: Solve for x
    x = 27,363,716,485.90/189,513.07
  6. Step 6: Final answer
    x = 144,389.60

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1.5x scale

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.