Home / 135,426.86-186,889.59-74,996.18

Finding the Fourth Proportional to 135,426.86, 186,889.59 and 74,996.18

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Solution

The fourth proportional to 135,426.86, 186,889.59 and 74,996.18 is: 103,495.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,426.86 : 186,889.59 = 74,996.18 : x
  2. Step 2: Convert to fraction form
    135,426.86/186,889.59 = 74,996.18/x
  3. Step 3: Cross multiply
    135,426.86x = 186,889.59 × 74,996.18
  4. Step 4: Simplify right side
    135,426.86x = 14,016,005,331.77
  5. Step 5: Solve for x
    x = 14,016,005,331.77/135,426.86
  6. Step 6: Final answer
    x = 103,495.02

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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.