Home / 102,742.53-141,783.58-56,801.97

Finding the Fourth Proportional to 102,742.53, 141,783.58 and 56,801.97

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Solution

The fourth proportional to 102,742.53, 141,783.58 and 56,801.97 is: 78,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,742.53 : 141,783.58 = 56,801.97 : x
  2. Step 2: Convert to fraction form
    102,742.53/141,783.58 = 56,801.97/x
  3. Step 3: Cross multiply
    102,742.53x = 141,783.58 × 56,801.97
  4. Step 4: Simplify right side
    102,742.53x = 8,053,586,657.65
  5. Step 5: Solve for x
    x = 8,053,586,657.65/102,742.53
  6. Step 6: Final answer
    x = 78,386.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.