Home / 191,056.36-286,147.50-91,286.68

Finding the Fourth Proportional to 191,056.36, 286,147.50 and 91,286.68

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Solution

The fourth proportional to 191,056.36, 286,147.50 and 91,286.68 is: 136,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,056.36 : 286,147.50 = 91,286.68 : x
  2. Step 2: Convert to fraction form
    191,056.36/286,147.50 = 91,286.68/x
  3. Step 3: Cross multiply
    191,056.36x = 286,147.50 × 91,286.68
  4. Step 4: Simplify right side
    191,056.36x = 26,121,455,265.30
  5. Step 5: Solve for x
    x = 26,121,455,265.30/191,056.36
  6. Step 6: Final answer
    x = 136,721.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.