Home / 131,668.12-181,688.83-74,302.30

Finding the Fourth Proportional to 131,668.12, 181,688.83 and 74,302.30

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Solution

The fourth proportional to 131,668.12, 181,688.83 and 74,302.30 is: 102,529.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,668.12 : 181,688.83 = 74,302.30 : x
  2. Step 2: Convert to fraction form
    131,668.12/181,688.83 = 74,302.30/x
  3. Step 3: Cross multiply
    131,668.12x = 181,688.83 × 74,302.30
  4. Step 4: Simplify right side
    131,668.12x = 13,499,897,953.31
  5. Step 5: Solve for x
    x = 13,499,897,953.31/131,668.12
  6. Step 6: Final answer
    x = 102,529.74

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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.