Home / 180,905.54-249,664.95-100,359

Finding the Fourth Proportional to 180,905.54, 249,664.95 and 100,359

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Solution

The fourth proportional to 180,905.54, 249,664.95 and 100,359 is: 138,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,905.54 : 249,664.95 = 100,359 : x
  2. Step 2: Convert to fraction form
    180,905.54/249,664.95 = 100,359/x
  3. Step 3: Cross multiply
    180,905.54x = 249,664.95 × 100,359
  4. Step 4: Simplify right side
    180,905.54x = 25,056,124,717.05
  5. Step 5: Solve for x
    x = 25,056,124,717.05/180,905.54
  6. Step 6: Final answer
    x = 138,503.91

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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.