Home / 126,133.68-174,089.70-72,455.52

Finding the Fourth Proportional to 126,133.68, 174,089.70 and 72,455.52

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Solution

The fourth proportional to 126,133.68, 174,089.70 and 72,455.52 is: 100,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,133.68 : 174,089.70 = 72,455.52 : x
  2. Step 2: Convert to fraction form
    126,133.68/174,089.70 = 72,455.52/x
  3. Step 3: Cross multiply
    126,133.68x = 174,089.70 × 72,455.52
  4. Step 4: Simplify right side
    126,133.68x = 12,613,759,740.14
  5. Step 5: Solve for x
    x = 12,613,759,740.14/126,133.68
  6. Step 6: Final answer
    x = 100,003.11

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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.