Home / 191,007.40-286,322.10-84,449.20

Finding the Fourth Proportional to 191,007.40, 286,322.10 and 84,449.20

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Solution

The fourth proportional to 191,007.40, 286,322.10 and 84,449.20 is: 126,590.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,007.40 : 286,322.10 = 84,449.20 : x
  2. Step 2: Convert to fraction form
    191,007.40/286,322.10 = 84,449.20/x
  3. Step 3: Cross multiply
    191,007.40x = 286,322.10 × 84,449.20
  4. Step 4: Simplify right side
    191,007.40x = 24,179,672,287.32
  5. Step 5: Solve for x
    x = 24,179,672,287.32/191,007.40
  6. Step 6: Final answer
    x = 126,590.24

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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.