Home / 142,038.94-196,007.18-81,567.04

Finding the Fourth Proportional to 142,038.94, 196,007.18 and 81,567.04

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Solution

The fourth proportional to 142,038.94, 196,007.18 and 81,567.04 is: 112,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,038.94 : 196,007.18 = 81,567.04 : x
  2. Step 2: Convert to fraction form
    142,038.94/196,007.18 = 81,567.04/x
  3. Step 3: Cross multiply
    142,038.94x = 196,007.18 × 81,567.04
  4. Step 4: Simplify right side
    142,038.94x = 15,987,725,491.35
  5. Step 5: Solve for x
    x = 15,987,725,491.35/142,038.94
  6. Step 6: Final answer
    x = 112,558.75

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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.