Home / 135,030.33-186,335.40-74,601.49

Finding the Fourth Proportional to 135,030.33, 186,335.40 and 74,601.49

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Solution

The fourth proportional to 135,030.33, 186,335.40 and 74,601.49 is: 102,946.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,030.33 : 186,335.40 = 74,601.49 : x
  2. Step 2: Convert to fraction form
    135,030.33/186,335.40 = 74,601.49/x
  3. Step 3: Cross multiply
    135,030.33x = 186,335.40 × 74,601.49
  4. Step 4: Simplify right side
    135,030.33x = 13,900,898,479.75
  5. Step 5: Solve for x
    x = 13,900,898,479.75/135,030.33
  6. Step 6: Final answer
    x = 102,946.49

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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.