Home / 212,639.60-318,959.40-94,541.60

Finding the Fourth Proportional to 212,639.60, 318,959.40 and 94,541.60

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Solution

The fourth proportional to 212,639.60, 318,959.40 and 94,541.60 is: 141,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,639.60 : 318,959.40 = 94,541.60 : x
  2. Step 2: Convert to fraction form
    212,639.60/318,959.40 = 94,541.60/x
  3. Step 3: Cross multiply
    212,639.60x = 318,959.40 × 94,541.60
  4. Step 4: Simplify right side
    212,639.60x = 30,154,932,011.04
  5. Step 5: Solve for x
    x = 30,154,932,011.04/212,639.60
  6. Step 6: Final answer
    x = 141,812.40

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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.