Home / 126,231.51-174,207-72,515.16

Finding the Fourth Proportional to 126,231.51, 174,207 and 72,515.16

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Solution

The fourth proportional to 126,231.51, 174,207 and 72,515.16 is: 100,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,231.51 : 174,207 = 72,515.16 : x
  2. Step 2: Convert to fraction form
    126,231.51/174,207 = 72,515.16/x
  3. Step 3: Cross multiply
    126,231.51x = 174,207 × 72,515.16
  4. Step 4: Simplify right side
    126,231.51x = 12,632,648,478.12
  5. Step 5: Solve for x
    x = 12,632,648,478.12/126,231.51
  6. Step 6: Final answer
    x = 100,075.24

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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.