Home / 212,513.40-318,693.52-70,332.41

Finding the Fourth Proportional to 212,513.40, 318,693.52 and 70,332.41

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Solution

The fourth proportional to 212,513.40, 318,693.52 and 70,332.41 is: 105,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,513.40 : 318,693.52 = 70,332.41 : x
  2. Step 2: Convert to fraction form
    212,513.40/318,693.52 = 70,332.41/x
  3. Step 3: Cross multiply
    212,513.40x = 318,693.52 × 70,332.41
  4. Step 4: Simplify right side
    212,513.40x = 22,414,482,961.32
  5. Step 5: Solve for x
    x = 22,414,482,961.32/212,513.40
  6. Step 6: Final answer
    x = 105,473.27

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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.