Home / 219,032.10-328,483.35-85,835.70

Finding the Fourth Proportional to 219,032.10, 328,483.35 and 85,835.70

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Solution

The fourth proportional to 219,032.10, 328,483.35 and 85,835.70 is: 128,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,032.10 : 328,483.35 = 85,835.70 : x
  2. Step 2: Convert to fraction form
    219,032.10/328,483.35 = 85,835.70/x
  3. Step 3: Cross multiply
    219,032.10x = 328,483.35 × 85,835.70
  4. Step 4: Simplify right side
    219,032.10x = 28,195,598,285.60
  5. Step 5: Solve for x
    x = 28,195,598,285.60/219,032.10
  6. Step 6: Final answer
    x = 128,728.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.