Home / 180,688.52-249,339.72-100,111.26

Finding the Fourth Proportional to 180,688.52, 249,339.72 and 100,111.26

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Solution

The fourth proportional to 180,688.52, 249,339.72 and 100,111.26 is: 138,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,688.52 : 249,339.72 = 100,111.26 : x
  2. Step 2: Convert to fraction form
    180,688.52/249,339.72 = 100,111.26/x
  3. Step 3: Cross multiply
    180,688.52x = 249,339.72 × 100,111.26
  4. Step 4: Simplify right side
    180,688.52x = 24,961,713,537.25
  5. Step 5: Solve for x
    x = 24,961,713,537.25/180,688.52
  6. Step 6: Final answer
    x = 138,147.76

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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.