Home / 156,365.14-215,783.04-84,744.40

Finding the Fourth Proportional to 156,365.14, 215,783.04 and 84,744.40

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Solution

The fourth proportional to 156,365.14, 215,783.04 and 84,744.40 is: 116,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,365.14 : 215,783.04 = 84,744.40 : x
  2. Step 2: Convert to fraction form
    156,365.14/215,783.04 = 84,744.40/x
  3. Step 3: Cross multiply
    156,365.14x = 215,783.04 × 84,744.40
  4. Step 4: Simplify right side
    156,365.14x = 18,286,404,254.98
  5. Step 5: Solve for x
    x = 18,286,404,254.98/156,365.14
  6. Step 6: Final answer
    x = 116,946.81

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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.