Home / 191,056.86-286,148.25-91,287.18

Finding the Fourth Proportional to 191,056.86, 286,148.25 and 91,287.18

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Solution

The fourth proportional to 191,056.86, 286,148.25 and 91,287.18 is: 136,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,056.86 : 286,148.25 = 91,287.18 : x
  2. Step 2: Convert to fraction form
    191,056.86/286,148.25 = 91,287.18/x
  3. Step 3: Cross multiply
    191,056.86x = 286,148.25 × 91,287.18
  4. Step 4: Simplify right side
    191,056.86x = 26,121,666,804.44
  5. Step 5: Solve for x
    x = 26,121,666,804.44/191,056.86
  6. Step 6: Final answer
    x = 136,721.95

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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.