Home / 180,746.10-249,429.65-100,178.82

Finding the Fourth Proportional to 180,746.10, 249,429.65 and 100,178.82

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Solution

The fourth proportional to 180,746.10, 249,429.65 and 100,178.82 is: 138,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,746.10 : 249,429.65 = 100,178.82 : x
  2. Step 2: Convert to fraction form
    180,746.10/249,429.65 = 100,178.82/x
  3. Step 3: Cross multiply
    180,746.10x = 249,429.65 × 100,178.82
  4. Step 4: Simplify right side
    180,746.10x = 24,987,567,509.12
  5. Step 5: Solve for x
    x = 24,987,567,509.12/180,746.10
  6. Step 6: Final answer
    x = 138,246.79

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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.