Home / 186,371.82-257,196.15-105,801.66

Finding the Fourth Proportional to 186,371.82, 257,196.15 and 105,801.66

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Solution

The fourth proportional to 186,371.82, 257,196.15 and 105,801.66 is: 146,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,371.82 : 257,196.15 = 105,801.66 : x
  2. Step 2: Convert to fraction form
    186,371.82/257,196.15 = 105,801.66/x
  3. Step 3: Cross multiply
    186,371.82x = 257,196.15 × 105,801.66
  4. Step 4: Simplify right side
    186,371.82x = 27,211,779,615.61
  5. Step 5: Solve for x
    x = 27,211,779,615.61/186,371.82
  6. Step 6: Final answer
    x = 146,008.02

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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.