Home / 142,725.84-213,220.66-92,395.92

Finding the Fourth Proportional to 142,725.84, 213,220.66 and 92,395.92

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Solution

The fourth proportional to 142,725.84, 213,220.66 and 92,395.92 is: 138,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,725.84 : 213,220.66 = 92,395.92 : x
  2. Step 2: Convert to fraction form
    142,725.84/213,220.66 = 92,395.92/x
  3. Step 3: Cross multiply
    142,725.84x = 213,220.66 × 92,395.92
  4. Step 4: Simplify right side
    142,725.84x = 19,700,719,043.71
  5. Step 5: Solve for x
    x = 19,700,719,043.71/142,725.84
  6. Step 6: Final answer
    x = 138,031.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.