Home / 191,308.62-286,700.42-121,062.18

Finding the Fourth Proportional to 191,308.62, 286,700.42 and 121,062.18

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Solution

The fourth proportional to 191,308.62, 286,700.42 and 121,062.18 is: 181,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,308.62 : 286,700.42 = 121,062.18 : x
  2. Step 2: Convert to fraction form
    191,308.62/286,700.42 = 121,062.18/x
  3. Step 3: Cross multiply
    191,308.62x = 286,700.42 × 121,062.18
  4. Step 4: Simplify right side
    191,308.62x = 34,708,577,852.12
  5. Step 5: Solve for x
    x = 34,708,577,852.12/191,308.62
  6. Step 6: Final answer
    x = 181,427.15

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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.