Home / 186,128.56-256,742.22-162,312.40

Finding the Fourth Proportional to 186,128.56, 256,742.22 and 162,312.40

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Solution

The fourth proportional to 186,128.56, 256,742.22 and 162,312.40 is: 223,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,128.56 : 256,742.22 = 162,312.40 : x
  2. Step 2: Convert to fraction form
    186,128.56/256,742.22 = 162,312.40/x
  3. Step 3: Cross multiply
    186,128.56x = 256,742.22 × 162,312.40
  4. Step 4: Simplify right side
    186,128.56x = 41,672,445,909.53
  5. Step 5: Solve for x
    x = 41,672,445,909.53/186,128.56
  6. Step 6: Final answer
    x = 223,890.66

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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.