Home / 423,826.49-635,669.03-139,520.14

Finding the Fourth Proportional to 423,826.49, 635,669.03 and 139,520.14

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Solution

The fourth proportional to 423,826.49, 635,669.03 and 139,520.14 is: 209,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,826.49 : 635,669.03 = 139,520.14 : x
  2. Step 2: Convert to fraction form
    423,826.49/635,669.03 = 139,520.14/x
  3. Step 3: Cross multiply
    423,826.49x = 635,669.03 × 139,520.14
  4. Step 4: Simplify right side
    423,826.49x = 88,688,630,818.89
  5. Step 5: Solve for x
    x = 88,688,630,818.89/423,826.49
  6. Step 6: Final answer
    x = 209,256.93

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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.