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Finding the Fourth Proportional to 159,038.52, 219,473.33 and 87,417.01

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Solution

The fourth proportional to 159,038.52, 219,473.33 and 87,417.01 is: 120,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,038.52 : 219,473.33 = 87,417.01 : x
  2. Step 2: Convert to fraction form
    159,038.52/219,473.33 = 87,417.01/x
  3. Step 3: Cross multiply
    159,038.52x = 219,473.33 × 87,417.01
  4. Step 4: Simplify right side
    159,038.52x = 19,185,702,283.34
  5. Step 5: Solve for x
    x = 19,185,702,283.34/159,038.52
  6. Step 6: Final answer
    x = 120,635.57

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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.