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Finding the Fourth Proportional to 94,401.60, 141,602.40 and 90,356.80

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Solution

The fourth proportional to 94,401.60, 141,602.40 and 90,356.80 is: 135,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,401.60 : 141,602.40 = 90,356.80 : x
  2. Step 2: Convert to fraction form
    94,401.60/141,602.40 = 90,356.80/x
  3. Step 3: Cross multiply
    94,401.60x = 141,602.40 × 90,356.80
  4. Step 4: Simplify right side
    94,401.60x = 12,794,739,736.32
  5. Step 5: Solve for x
    x = 12,794,739,736.32/94,401.60
  6. Step 6: Final answer
    x = 135,535.20

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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.