Home / 126,370.42-174,429.79-77,987.14

Finding the Fourth Proportional to 126,370.42, 174,429.79 and 77,987.14

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Solution

The fourth proportional to 126,370.42, 174,429.79 and 77,987.14 is: 107,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,370.42 : 174,429.79 = 77,987.14 : x
  2. Step 2: Convert to fraction form
    126,370.42/174,429.79 = 77,987.14/x
  3. Step 3: Cross multiply
    126,370.42x = 174,429.79 × 77,987.14
  4. Step 4: Simplify right side
    126,370.42x = 13,603,280,452.90
  5. Step 5: Solve for x
    x = 13,603,280,452.90/126,370.42
  6. Step 6: Final answer
    x = 107,646.08

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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.