Home / 186,171.69-256,918.05-101,289.36

Finding the Fourth Proportional to 186,171.69, 256,918.05 and 101,289.36

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Solution

The fourth proportional to 186,171.69, 256,918.05 and 101,289.36 is: 139,779.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,171.69 : 256,918.05 = 101,289.36 : x
  2. Step 2: Convert to fraction form
    186,171.69/256,918.05 = 101,289.36/x
  3. Step 3: Cross multiply
    186,171.69x = 256,918.05 × 101,289.36
  4. Step 4: Simplify right side
    186,171.69x = 26,023,064,856.95
  5. Step 5: Solve for x
    x = 26,023,064,856.95/186,171.69
  6. Step 6: Final answer
    x = 139,779.92

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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.