Home / 148,803.21-205,349.93-80,820.83

Finding the Fourth Proportional to 148,803.21, 205,349.93 and 80,820.83

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Solution

The fourth proportional to 148,803.21, 205,349.93 and 80,820.83 is: 111,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,803.21 : 205,349.93 = 80,820.83 : x
  2. Step 2: Convert to fraction form
    148,803.21/205,349.93 = 80,820.83/x
  3. Step 3: Cross multiply
    148,803.21x = 205,349.93 × 80,820.83
  4. Step 4: Simplify right side
    148,803.21x = 16,596,550,352.19
  5. Step 5: Solve for x
    x = 16,596,550,352.19/148,803.21
  6. Step 6: Final answer
    x = 111,533.55

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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.