Home / 295,124.18-442,636.75-81,913.76

Finding the Fourth Proportional to 295,124.18, 442,636.75 and 81,913.76

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Solution

The fourth proportional to 295,124.18, 442,636.75 and 81,913.76 is: 122,856.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,124.18 : 442,636.75 = 81,913.76 : x
  2. Step 2: Convert to fraction form
    295,124.18/442,636.75 = 81,913.76/x
  3. Step 3: Cross multiply
    295,124.18x = 442,636.75 × 81,913.76
  4. Step 4: Simplify right side
    295,124.18x = 36,258,038,810.86
  5. Step 5: Solve for x
    x = 36,258,038,810.86/295,124.18
  6. Step 6: Final answer
    x = 122,856.89

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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.