Home / 134,434.08-185,519.70-74,010.78

Finding the Fourth Proportional to 134,434.08, 185,519.70 and 74,010.78

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Solution

The fourth proportional to 134,434.08, 185,519.70 and 74,010.78 is: 102,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,434.08 : 185,519.70 = 74,010.78 : x
  2. Step 2: Convert to fraction form
    134,434.08/185,519.70 = 74,010.78/x
  3. Step 3: Cross multiply
    134,434.08x = 185,519.70 × 74,010.78
  4. Step 4: Simplify right side
    134,434.08x = 13,730,457,702.37
  5. Step 5: Solve for x
    x = 13,730,457,702.37/134,434.08
  6. Step 6: Final answer
    x = 102,135.25

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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.