Home / 156,055.81-215,355.48-84,434.26

Finding the Fourth Proportional to 156,055.81, 215,355.48 and 84,434.26

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Solution

The fourth proportional to 156,055.81, 215,355.48 and 84,434.26 is: 116,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,055.81 : 215,355.48 = 84,434.26 : x
  2. Step 2: Convert to fraction form
    156,055.81/215,355.48 = 84,434.26/x
  3. Step 3: Cross multiply
    156,055.81x = 215,355.48 × 84,434.26
  4. Step 4: Simplify right side
    156,055.81x = 18,183,380,590.74
  5. Step 5: Solve for x
    x = 18,183,380,590.74/156,055.81
  6. Step 6: Final answer
    x = 116,518.45

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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.