Home / 82,845.90-124,268.85-76,430.70

Finding the Fourth Proportional to 82,845.90, 124,268.85 and 76,430.70

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Solution

The fourth proportional to 82,845.90, 124,268.85 and 76,430.70 is: 114,646.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,845.90 : 124,268.85 = 76,430.70 : x
  2. Step 2: Convert to fraction form
    82,845.90/124,268.85 = 76,430.70/x
  3. Step 3: Cross multiply
    82,845.90x = 124,268.85 × 76,430.70
  4. Step 4: Simplify right side
    82,845.90x = 9,497,955,193.70
  5. Step 5: Solve for x
    x = 9,497,955,193.70/82,845.90
  6. Step 6: Final answer
    x = 114,646.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.