Home / 129,783.34-179,111.55-73,206.46

Finding the Fourth Proportional to 129,783.34, 179,111.55 and 73,206.46

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Solution

The fourth proportional to 129,783.34, 179,111.55 and 73,206.46 is: 101,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,783.34 : 179,111.55 = 73,206.46 : x
  2. Step 2: Convert to fraction form
    129,783.34/179,111.55 = 73,206.46/x
  3. Step 3: Cross multiply
    129,783.34x = 179,111.55 × 73,206.46
  4. Step 4: Simplify right side
    129,783.34x = 13,112,122,520.61
  5. Step 5: Solve for x
    x = 13,112,122,520.61/129,783.34
  6. Step 6: Final answer
    x = 101,030.86

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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.