Home / 186,128.29-256,857.65-101,245.33

Finding the Fourth Proportional to 186,128.29, 256,857.65 and 101,245.33

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Solution

The fourth proportional to 186,128.29, 256,857.65 and 101,245.33 is: 139,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,128.29 : 256,857.65 = 101,245.33 : x
  2. Step 2: Convert to fraction form
    186,128.29/256,857.65 = 101,245.33/x
  3. Step 3: Cross multiply
    186,128.29x = 256,857.65 × 101,245.33
  4. Step 4: Simplify right side
    186,128.29x = 26,005,637,537.27
  5. Step 5: Solve for x
    x = 26,005,637,537.27/186,128.29
  6. Step 6: Final answer
    x = 139,718.89

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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.