Home / 126,423.65-174,301.84-90,166.44

Finding the Fourth Proportional to 126,423.65, 174,301.84 and 90,166.44

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Solution

The fourth proportional to 126,423.65, 174,301.84 and 90,166.44 is: 124,313.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,423.65 : 174,301.84 = 90,166.44 : x
  2. Step 2: Convert to fraction form
    126,423.65/174,301.84 = 90,166.44/x
  3. Step 3: Cross multiply
    126,423.65x = 174,301.84 × 90,166.44
  4. Step 4: Simplify right side
    126,423.65x = 15,716,176,172.83
  5. Step 5: Solve for x
    x = 15,716,176,172.83/126,423.65
  6. Step 6: Final answer
    x = 124,313.57

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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.