Home / 100,718.65-151,077.94-47,377.45

Finding the Fourth Proportional to 100,718.65, 151,077.94 and 47,377.45

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Solution

The fourth proportional to 100,718.65, 151,077.94 and 47,377.45 is: 71,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,718.65 : 151,077.94 = 47,377.45 : x
  2. Step 2: Convert to fraction form
    100,718.65/151,077.94 = 47,377.45/x
  3. Step 3: Cross multiply
    100,718.65x = 151,077.94 × 47,377.45
  4. Step 4: Simplify right side
    100,718.65x = 7,157,687,548.45
  5. Step 5: Solve for x
    x = 7,157,687,548.45/100,718.65
  6. Step 6: Final answer
    x = 71,066.16

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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.