Home / 210,384.04-315,578.85-70,142.71

Finding the Fourth Proportional to 210,384.04, 315,578.85 and 70,142.71

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Solution

The fourth proportional to 210,384.04, 315,578.85 and 70,142.71 is: 105,215.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,384.04 : 315,578.85 = 70,142.71 : x
  2. Step 2: Convert to fraction form
    210,384.04/315,578.85 = 70,142.71/x
  3. Step 3: Cross multiply
    210,384.04x = 315,578.85 × 70,142.71
  4. Step 4: Simplify right side
    210,384.04x = 22,135,555,757.68
  5. Step 5: Solve for x
    x = 22,135,555,757.68/210,384.04
  6. Step 6: Final answer
    x = 105,215.00

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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.