Home / 145,476.52-217,808.46-78,677.32

Finding the Fourth Proportional to 145,476.52, 217,808.46 and 78,677.32

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Solution

The fourth proportional to 145,476.52, 217,808.46 and 78,677.32 is: 117,796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,476.52 : 217,808.46 = 78,677.32 : x
  2. Step 2: Convert to fraction form
    145,476.52/217,808.46 = 78,677.32/x
  3. Step 3: Cross multiply
    145,476.52x = 217,808.46 × 78,677.32
  4. Step 4: Simplify right side
    145,476.52x = 17,136,585,906.13
  5. Step 5: Solve for x
    x = 17,136,585,906.13/145,476.52
  6. Step 6: Final answer
    x = 117,796.23

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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.