Home / 142,012.44-195,915.71-81,569.23

Finding the Fourth Proportional to 142,012.44, 195,915.71 and 81,569.23

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Solution

The fourth proportional to 142,012.44, 195,915.71 and 81,569.23 is: 112,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,012.44 : 195,915.71 = 81,569.23 : x
  2. Step 2: Convert to fraction form
    142,012.44/195,915.71 = 81,569.23/x
  3. Step 3: Cross multiply
    142,012.44x = 195,915.71 × 81,569.23
  4. Step 4: Simplify right side
    142,012.44x = 15,980,693,323.74
  5. Step 5: Solve for x
    x = 15,980,693,323.74/142,012.44
  6. Step 6: Final answer
    x = 112,530.24

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1.5x scale

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.