Home / 131,038.43-180,776.12-83,266.15

Finding the Fourth Proportional to 131,038.43, 180,776.12 and 83,266.15

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Solution

The fourth proportional to 131,038.43, 180,776.12 and 83,266.15 is: 114,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,038.43 : 180,776.12 = 83,266.15 : x
  2. Step 2: Convert to fraction form
    131,038.43/180,776.12 = 83,266.15/x
  3. Step 3: Cross multiply
    131,038.43x = 180,776.12 × 83,266.15
  4. Step 4: Simplify right side
    131,038.43x = 15,052,530,656.07
  5. Step 5: Solve for x
    x = 15,052,530,656.07/131,038.43
  6. Step 6: Final answer
    x = 114,871.12

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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.