Home / 83,427.08-114,840.11-72,798.26

Finding the Fourth Proportional to 83,427.08, 114,840.11 and 72,798.26

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Solution

The fourth proportional to 83,427.08, 114,840.11 and 72,798.26 is: 100,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.08 : 114,840.11 = 72,798.26 : x
  2. Step 2: Convert to fraction form
    83,427.08/114,840.11 = 72,798.26/x
  3. Step 3: Cross multiply
    83,427.08x = 114,840.11 × 72,798.26
  4. Step 4: Simplify right side
    83,427.08x = 8,360,159,794.00
  5. Step 5: Solve for x
    x = 8,360,159,794.00/83,427.08
  6. Step 6: Final answer
    x = 100,209.19

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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.