Home / 180,589.18-249,215.19-100,018.28

Finding the Fourth Proportional to 180,589.18, 249,215.19 and 100,018.28

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Solution

The fourth proportional to 180,589.18, 249,215.19 and 100,018.28 is: 138,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,589.18 : 249,215.19 = 100,018.28 : x
  2. Step 2: Convert to fraction form
    180,589.18/249,215.19 = 100,018.28/x
  3. Step 3: Cross multiply
    180,589.18x = 249,215.19 × 100,018.28
  4. Step 4: Simplify right side
    180,589.18x = 24,926,074,653.67
  5. Step 5: Solve for x
    x = 24,926,074,653.67/180,589.18
  6. Step 6: Final answer
    x = 138,026.40

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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.