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Finding the Fourth Proportional to 159,032.88, 219,461.04 and 87,412.92

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Solution

The fourth proportional to 159,032.88, 219,461.04 and 87,412.92 is: 120,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,032.88 : 219,461.04 = 87,412.92 : x
  2. Step 2: Convert to fraction form
    159,032.88/219,461.04 = 87,412.92/x
  3. Step 3: Cross multiply
    159,032.88x = 219,461.04 × 87,412.92
  4. Step 4: Simplify right side
    159,032.88x = 19,183,730,332.64
  5. Step 5: Solve for x
    x = 19,183,730,332.64/159,032.88
  6. Step 6: Final answer
    x = 120,627.45

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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.