Home / 126,526.83-174,487.68-81,218.67

Finding the Fourth Proportional to 126,526.83, 174,487.68 and 81,218.67

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Solution

The fourth proportional to 126,526.83, 174,487.68 and 81,218.67 is: 112,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,526.83 : 174,487.68 = 81,218.67 : x
  2. Step 2: Convert to fraction form
    126,526.83/174,487.68 = 81,218.67/x
  3. Step 3: Cross multiply
    126,526.83x = 174,487.68 × 81,218.67
  4. Step 4: Simplify right side
    126,526.83x = 14,171,657,300.99
  5. Step 5: Solve for x
    x = 14,171,657,300.99/126,526.83
  6. Step 6: Final answer
    x = 112,005.16

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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.