Home / 152,336.09-210,226.00-87,769.70

Finding the Fourth Proportional to 152,336.09, 210,226.00 and 87,769.70

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Solution

The fourth proportional to 152,336.09, 210,226.00 and 87,769.70 is: 121,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,336.09 : 210,226.00 = 87,769.70 : x
  2. Step 2: Convert to fraction form
    152,336.09/210,226.00 = 87,769.70/x
  3. Step 3: Cross multiply
    152,336.09x = 210,226.00 × 87,769.70
  4. Step 4: Simplify right side
    152,336.09x = 18,451,471,681.65
  5. Step 5: Solve for x
    x = 18,451,471,681.65/152,336.09
  6. Step 6: Final answer
    x = 121,123.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.