Home / 94,686.40-142,029.60-28,136.80

Finding the Fourth Proportional to 94,686.40, 142,029.60 and 28,136.80

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Solution

The fourth proportional to 94,686.40, 142,029.60 and 28,136.80 is: 42,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,686.40 : 142,029.60 = 28,136.80 : x
  2. Step 2: Convert to fraction form
    94,686.40/142,029.60 = 28,136.80/x
  3. Step 3: Cross multiply
    94,686.40x = 142,029.60 × 28,136.80
  4. Step 4: Simplify right side
    94,686.40x = 3,996,258,449.28
  5. Step 5: Solve for x
    x = 3,996,258,449.28/94,686.40
  6. Step 6: Final answer
    x = 42,205.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.