Home / 131,036.32-180,834.96-74,457.28

Finding the Fourth Proportional to 131,036.32, 180,834.96 and 74,457.28

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Solution

The fourth proportional to 131,036.32, 180,834.96 and 74,457.28 is: 102,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,036.32 : 180,834.96 = 74,457.28 : x
  2. Step 2: Convert to fraction form
    131,036.32/180,834.96 = 74,457.28/x
  3. Step 3: Cross multiply
    131,036.32x = 180,834.96 × 74,457.28
  4. Step 4: Simplify right side
    131,036.32x = 13,464,479,250.51
  5. Step 5: Solve for x
    x = 13,464,479,250.51/131,036.32
  6. Step 6: Final answer
    x = 102,753.80

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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.