Home / 180,890.52-249,644.70-105,437.40

Finding the Fourth Proportional to 180,890.52, 249,644.70 and 105,437.40

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Solution

The fourth proportional to 180,890.52, 249,644.70 and 105,437.40 is: 145,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,890.52 : 249,644.70 = 105,437.40 : x
  2. Step 2: Convert to fraction form
    180,890.52/249,644.70 = 105,437.40/x
  3. Step 3: Cross multiply
    180,890.52x = 249,644.70 × 105,437.40
  4. Step 4: Simplify right side
    180,890.52x = 26,321,888,091.78
  5. Step 5: Solve for x
    x = 26,321,888,091.78/180,890.52
  6. Step 6: Final answer
    x = 145,512.81

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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.