Home / 132,886.91-183,380.55-72,457.67

Finding the Fourth Proportional to 132,886.91, 183,380.55 and 72,457.67

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Solution

The fourth proportional to 132,886.91, 183,380.55 and 72,457.67 is: 99,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,886.91 : 183,380.55 = 72,457.67 : x
  2. Step 2: Convert to fraction form
    132,886.91/183,380.55 = 72,457.67/x
  3. Step 3: Cross multiply
    132,886.91x = 183,380.55 × 72,457.67
  4. Step 4: Simplify right side
    132,886.91x = 13,287,327,376.32
  5. Step 5: Solve for x
    x = 13,287,327,376.32/132,886.91
  6. Step 6: Final answer
    x = 99,989.74

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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.