Home / 126,153.80-174,084.36-72,401

Finding the Fourth Proportional to 126,153.80, 174,084.36 and 72,401

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Solution

The fourth proportional to 126,153.80, 174,084.36 and 72,401 is: 99,908.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,153.80 : 174,084.36 = 72,401 : x
  2. Step 2: Convert to fraction form
    126,153.80/174,084.36 = 72,401/x
  3. Step 3: Cross multiply
    126,153.80x = 174,084.36 × 72,401
  4. Step 4: Simplify right side
    126,153.80x = 12,603,881,748.36
  5. Step 5: Solve for x
    x = 12,603,881,748.36/126,153.80
  6. Step 6: Final answer
    x = 99,908.86

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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.