Home / 156,154.51-215,493.18-84,534.49

Finding the Fourth Proportional to 156,154.51, 215,493.18 and 84,534.49

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Solution

The fourth proportional to 156,154.51, 215,493.18 and 84,534.49 is: 116,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.51 : 215,493.18 = 84,534.49 : x
  2. Step 2: Convert to fraction form
    156,154.51/215,493.18 = 84,534.49/x
  3. Step 3: Cross multiply
    156,154.51x = 215,493.18 × 84,534.49
  4. Step 4: Simplify right side
    156,154.51x = 18,216,606,069.78
  5. Step 5: Solve for x
    x = 18,216,606,069.78/156,154.51
  6. Step 6: Final answer
    x = 116,657.57

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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.