Home / 135,099.04-186,420.49-74,661.45

Finding the Fourth Proportional to 135,099.04, 186,420.49 and 74,661.45

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Solution

The fourth proportional to 135,099.04, 186,420.49 and 74,661.45 is: 103,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,099.04 : 186,420.49 = 74,661.45 : x
  2. Step 2: Convert to fraction form
    135,099.04/186,420.49 = 74,661.45/x
  3. Step 3: Cross multiply
    135,099.04x = 186,420.49 × 74,661.45
  4. Step 4: Simplify right side
    135,099.04x = 13,918,423,207.38
  5. Step 5: Solve for x
    x = 13,918,423,207.38/135,099.04
  6. Step 6: Final answer
    x = 103,023.85

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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.