Home / 210,336.96-315,505.76-70,106.56

Finding the Fourth Proportional to 210,336.96, 315,505.76 and 70,106.56

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Solution

The fourth proportional to 210,336.96, 315,505.76 and 70,106.56 is: 105,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,336.96 : 315,505.76 = 70,106.56 : x
  2. Step 2: Convert to fraction form
    210,336.96/315,505.76 = 70,106.56/x
  3. Step 3: Cross multiply
    210,336.96x = 315,505.76 × 70,106.56
  4. Step 4: Simplify right side
    210,336.96x = 22,119,023,493.79
  5. Step 5: Solve for x
    x = 22,119,023,493.79/210,336.96
  6. Step 6: Final answer
    x = 105,159.95

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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.