Home / 145,872.42-218,845.53-40,691.31

Finding the Fourth Proportional to 145,872.42, 218,845.53 and 40,691.31

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Solution

The fourth proportional to 145,872.42, 218,845.53 and 40,691.31 is: 61,047.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,872.42 : 218,845.53 = 40,691.31 : x
  2. Step 2: Convert to fraction form
    145,872.42/218,845.53 = 40,691.31/x
  3. Step 3: Cross multiply
    145,872.42x = 218,845.53 × 40,691.31
  4. Step 4: Simplify right side
    145,872.42x = 8,905,111,303.34
  5. Step 5: Solve for x
    x = 8,905,111,303.34/145,872.42
  6. Step 6: Final answer
    x = 61,047.26

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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.