Home / 131,010.32-180,799.08-74,431.28

Finding the Fourth Proportional to 131,010.32, 180,799.08 and 74,431.28

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Solution

The fourth proportional to 131,010.32, 180,799.08 and 74,431.28 is: 102,717.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,010.32 : 180,799.08 = 74,431.28 : x
  2. Step 2: Convert to fraction form
    131,010.32/180,799.08 = 74,431.28/x
  3. Step 3: Cross multiply
    131,010.32x = 180,799.08 × 74,431.28
  4. Step 4: Simplify right side
    131,010.32x = 13,457,106,947.22
  5. Step 5: Solve for x
    x = 13,457,106,947.22/131,010.32
  6. Step 6: Final answer
    x = 102,717.92

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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.