Home / 132,990.45-183,501.69-79,280.46

Finding the Fourth Proportional to 132,990.45, 183,501.69 and 79,280.46

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Solution

The fourth proportional to 132,990.45, 183,501.69 and 79,280.46 is: 109,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,990.45 : 183,501.69 = 79,280.46 : x
  2. Step 2: Convert to fraction form
    132,990.45/183,501.69 = 79,280.46/x
  3. Step 3: Cross multiply
    132,990.45x = 183,501.69 × 79,280.46
  4. Step 4: Simplify right side
    132,990.45x = 14,548,098,393.98
  5. Step 5: Solve for x
    x = 14,548,098,393.98/132,990.45
  6. Step 6: Final answer
    x = 109,392.05

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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.