Home / 129,313.64-178,426.08-75,588.26

Finding the Fourth Proportional to 129,313.64, 178,426.08 and 75,588.26

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Solution

The fourth proportional to 129,313.64, 178,426.08 and 75,588.26 is: 104,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,313.64 : 178,426.08 = 75,588.26 : x
  2. Step 2: Convert to fraction form
    129,313.64/178,426.08 = 75,588.26/x
  3. Step 3: Cross multiply
    129,313.64x = 178,426.08 × 75,588.26
  4. Step 4: Simplify right side
    129,313.64x = 13,486,916,033.69
  5. Step 5: Solve for x
    x = 13,486,916,033.69/129,313.64
  6. Step 6: Final answer
    x = 104,296.16

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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.