Home / 158,688.51-219,004.35-87,082.50

Finding the Fourth Proportional to 158,688.51, 219,004.35 and 87,082.50

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Solution

The fourth proportional to 158,688.51, 219,004.35 and 87,082.50 is: 120,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,688.51 : 219,004.35 = 87,082.50 : x
  2. Step 2: Convert to fraction form
    158,688.51/219,004.35 = 87,082.50/x
  3. Step 3: Cross multiply
    158,688.51x = 219,004.35 × 87,082.50
  4. Step 4: Simplify right side
    158,688.51x = 19,071,446,308.88
  5. Step 5: Solve for x
    x = 19,071,446,308.88/158,688.51
  6. Step 6: Final answer
    x = 120,181.65

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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.