Home / 261,420.24-392,148.12-83,916.48

Finding the Fourth Proportional to 261,420.24, 392,148.12 and 83,916.48

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Solution

The fourth proportional to 261,420.24, 392,148.12 and 83,916.48 is: 125,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,420.24 : 392,148.12 = 83,916.48 : x
  2. Step 2: Convert to fraction form
    261,420.24/392,148.12 = 83,916.48/x
  3. Step 3: Cross multiply
    261,420.24x = 392,148.12 × 83,916.48
  4. Step 4: Simplify right side
    261,420.24x = 32,907,689,869.02
  5. Step 5: Solve for x
    x = 32,907,689,869.02/261,420.24
  6. Step 6: Final answer
    x = 125,880.42

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1.5x scale

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.