Home / 199,787.40-299,574.48-87,336

Finding the Fourth Proportional to 199,787.40, 299,574.48 and 87,336

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Solution

The fourth proportional to 199,787.40, 299,574.48 and 87,336 is: 130,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,787.40 : 299,574.48 = 87,336 : x
  2. Step 2: Convert to fraction form
    199,787.40/299,574.48 = 87,336/x
  3. Step 3: Cross multiply
    199,787.40x = 299,574.48 × 87,336
  4. Step 4: Simplify right side
    199,787.40x = 26,163,636,785.28
  5. Step 5: Solve for x
    x = 26,163,636,785.28/199,787.40
  6. Step 6: Final answer
    x = 130,957.39

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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.