Home / 83,212.02-124,710.75-72,495.05

Finding the Fourth Proportional to 83,212.02, 124,710.75 and 72,495.05

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Solution

The fourth proportional to 83,212.02, 124,710.75 and 72,495.05 is: 108,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,212.02 : 124,710.75 = 72,495.05 : x
  2. Step 2: Convert to fraction form
    83,212.02/124,710.75 = 72,495.05/x
  3. Step 3: Cross multiply
    83,212.02x = 124,710.75 × 72,495.05
  4. Step 4: Simplify right side
    83,212.02x = 9,040,911,433.23
  5. Step 5: Solve for x
    x = 9,040,911,433.23/83,212.02
  6. Step 6: Final answer
    x = 108,649.10

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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.