Home / 212,225.81-318,370.37-70,086.15

Finding the Fourth Proportional to 212,225.81, 318,370.37 and 70,086.15

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Solution

The fourth proportional to 212,225.81, 318,370.37 and 70,086.15 is: 105,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,225.81 : 318,370.37 = 70,086.15 : x
  2. Step 2: Convert to fraction form
    212,225.81/318,370.37 = 70,086.15/x
  3. Step 3: Cross multiply
    212,225.81x = 318,370.37 × 70,086.15
  4. Step 4: Simplify right side
    212,225.81x = 22,313,353,156.94
  5. Step 5: Solve for x
    x = 22,313,353,156.94/212,225.81
  6. Step 6: Final answer
    x = 105,139.68

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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.