Home / 129,801.84-179,122.52-73,212.40

Finding the Fourth Proportional to 129,801.84, 179,122.52 and 73,212.40

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Solution

The fourth proportional to 129,801.84, 179,122.52 and 73,212.40 is: 101,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,801.84 : 179,122.52 = 73,212.40 : x
  2. Step 2: Convert to fraction form
    129,801.84/179,122.52 = 73,212.40/x
  3. Step 3: Cross multiply
    129,801.84x = 179,122.52 × 73,212.40
  4. Step 4: Simplify right side
    129,801.84x = 13,113,989,583.25
  5. Step 5: Solve for x
    x = 13,113,989,583.25/129,801.84
  6. Step 6: Final answer
    x = 101,030.85

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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.