Home / 135,013.32-186,317.64-74,588.12

Finding the Fourth Proportional to 135,013.32, 186,317.64 and 74,588.12

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Solution

The fourth proportional to 135,013.32, 186,317.64 and 74,588.12 is: 102,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,013.32 : 186,317.64 = 74,588.12 : x
  2. Step 2: Convert to fraction form
    135,013.32/186,317.64 = 74,588.12/x
  3. Step 3: Cross multiply
    135,013.32x = 186,317.64 × 74,588.12
  4. Step 4: Simplify right side
    135,013.32x = 13,897,082,490.44
  5. Step 5: Solve for x
    x = 13,897,082,490.44/135,013.32
  6. Step 6: Final answer
    x = 102,931.20

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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.