Home / 156,154.90-215,495.48-84,536.45

Finding the Fourth Proportional to 156,154.90, 215,495.48 and 84,536.45

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Solution

The fourth proportional to 156,154.90, 215,495.48 and 84,536.45 is: 116,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.90 : 215,495.48 = 84,536.45 : x
  2. Step 2: Convert to fraction form
    156,154.90/215,495.48 = 84,536.45/x
  3. Step 3: Cross multiply
    156,154.90x = 215,495.48 × 84,536.45
  4. Step 4: Simplify right side
    156,154.90x = 18,217,222,447.56
  5. Step 5: Solve for x
    x = 18,217,222,447.56/156,154.90
  6. Step 6: Final answer
    x = 116,661.23

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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.