Home / 129,756.89-179,070.64-73,167.05

Finding the Fourth Proportional to 129,756.89, 179,070.64 and 73,167.05

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Solution

The fourth proportional to 129,756.89, 179,070.64 and 73,167.05 is: 100,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,756.89 : 179,070.64 = 73,167.05 : x
  2. Step 2: Convert to fraction form
    129,756.89/179,070.64 = 73,167.05/x
  3. Step 3: Cross multiply
    129,756.89x = 179,070.64 × 73,167.05
  4. Step 4: Simplify right side
    129,756.89x = 13,102,069,392.14
  5. Step 5: Solve for x
    x = 13,102,069,392.14/129,756.89
  6. Step 6: Final answer
    x = 100,973.98

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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.