Home / 130,926.28-180,825.42-88,411

Finding the Fourth Proportional to 130,926.28, 180,825.42 and 88,411

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Solution

The fourth proportional to 130,926.28, 180,825.42 and 88,411 is: 122,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,926.28 : 180,825.42 = 88,411 : x
  2. Step 2: Convert to fraction form
    130,926.28/180,825.42 = 88,411/x
  3. Step 3: Cross multiply
    130,926.28x = 180,825.42 × 88,411
  4. Step 4: Simplify right side
    130,926.28x = 15,986,956,207.62
  5. Step 5: Solve for x
    x = 15,986,956,207.62/130,926.28
  6. Step 6: Final answer
    x = 122,106.55

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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.