Home / 180,826.10-249,554.81-100,278.89

Finding the Fourth Proportional to 180,826.10, 249,554.81 and 100,278.89

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Solution

The fourth proportional to 180,826.10, 249,554.81 and 100,278.89 is: 138,393.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,826.10 : 249,554.81 = 100,278.89 : x
  2. Step 2: Convert to fraction form
    180,826.10/249,554.81 = 100,278.89/x
  3. Step 3: Cross multiply
    180,826.10x = 249,554.81 × 100,278.89
  4. Step 4: Simplify right side
    180,826.10x = 25,025,079,340.96
  5. Step 5: Solve for x
    x = 25,025,079,340.96/180,826.10
  6. Step 6: Final answer
    x = 138,393.07

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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.