Home / 191,386.98-287,080.65-91,523.70

Finding the Fourth Proportional to 191,386.98, 287,080.65 and 91,523.70

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Solution

The fourth proportional to 191,386.98, 287,080.65 and 91,523.70 is: 137,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,386.98 : 287,080.65 = 91,523.70 : x
  2. Step 2: Convert to fraction form
    191,386.98/287,080.65 = 91,523.70/x
  3. Step 3: Cross multiply
    191,386.98x = 287,080.65 × 91,523.70
  4. Step 4: Simplify right side
    191,386.98x = 26,274,683,286.41
  5. Step 5: Solve for x
    x = 26,274,683,286.41/191,386.98
  6. Step 6: Final answer
    x = 137,285.64

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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.