Home / 83,548.98-125,212.53-72,403.50

Finding the Fourth Proportional to 83,548.98, 125,212.53 and 72,403.50

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Solution

The fourth proportional to 83,548.98, 125,212.53 and 72,403.50 is: 108,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,548.98 : 125,212.53 = 72,403.50 : x
  2. Step 2: Convert to fraction form
    83,548.98/125,212.53 = 72,403.50/x
  3. Step 3: Cross multiply
    83,548.98x = 125,212.53 × 72,403.50
  4. Step 4: Simplify right side
    83,548.98x = 9,065,825,415.86
  5. Step 5: Solve for x
    x = 9,065,825,415.86/83,548.98
  6. Step 6: Final answer
    x = 108,509.11

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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.