Home / 126,173.64-174,113.74-72,420.84

Finding the Fourth Proportional to 126,173.64, 174,113.74 and 72,420.84

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Solution

The fourth proportional to 126,173.64, 174,113.74 and 72,420.84 is: 99,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,173.64 : 174,113.74 = 72,420.84 : x
  2. Step 2: Convert to fraction form
    126,173.64/174,113.74 = 72,420.84/x
  3. Step 3: Cross multiply
    126,173.64x = 174,113.74 × 72,420.84
  4. Step 4: Simplify right side
    126,173.64x = 12,609,463,306.34
  5. Step 5: Solve for x
    x = 12,609,463,306.34/126,173.64
  6. Step 6: Final answer
    x = 99,937.38

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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.