Home / 180,541.72-249,177.90-105,134.68

Finding the Fourth Proportional to 180,541.72, 249,177.90 and 105,134.68

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Solution

The fourth proportional to 180,541.72, 249,177.90 and 105,134.68 is: 145,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,541.72 : 249,177.90 = 105,134.68 : x
  2. Step 2: Convert to fraction form
    180,541.72/249,177.90 = 105,134.68/x
  3. Step 3: Cross multiply
    180,541.72x = 249,177.90 × 105,134.68
  4. Step 4: Simplify right side
    180,541.72x = 26,197,238,779.57
  5. Step 5: Solve for x
    x = 26,197,238,779.57/180,541.72
  6. Step 6: Final answer
    x = 145,103.52

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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.