Home / 112,342.56-155,032.80-61,356

Finding the Fourth Proportional to 112,342.56, 155,032.80 and 61,356

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Solution

The fourth proportional to 112,342.56, 155,032.80 and 61,356 is: 84,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,342.56 : 155,032.80 = 61,356 : x
  2. Step 2: Convert to fraction form
    112,342.56/155,032.80 = 61,356/x
  3. Step 3: Cross multiply
    112,342.56x = 155,032.80 × 61,356
  4. Step 4: Simplify right side
    112,342.56x = 9,512,192,476.80
  5. Step 5: Solve for x
    x = 9,512,192,476.80/112,342.56
  6. Step 6: Final answer
    x = 84,671.32

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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.