Home / 159,052.12-219,492.18-87,432.60

Finding the Fourth Proportional to 159,052.12, 219,492.18 and 87,432.60

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Solution

The fourth proportional to 159,052.12, 219,492.18 and 87,432.60 is: 120,657.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,052.12 : 219,492.18 = 87,432.60 : x
  2. Step 2: Convert to fraction form
    159,052.12/219,492.18 = 87,432.60/x
  3. Step 3: Cross multiply
    159,052.12x = 219,492.18 × 87,432.60
  4. Step 4: Simplify right side
    159,052.12x = 19,190,771,977.07
  5. Step 5: Solve for x
    x = 19,190,771,977.07/159,052.12
  6. Step 6: Final answer
    x = 120,657.13

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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.