Home / 423,530.06-635,160.37-139,155.07

Finding the Fourth Proportional to 423,530.06, 635,160.37 and 139,155.07

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Solution

The fourth proportional to 423,530.06, 635,160.37 and 139,155.07 is: 208,688.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,530.06 : 635,160.37 = 139,155.07 : x
  2. Step 2: Convert to fraction form
    423,530.06/635,160.37 = 139,155.07/x
  3. Step 3: Cross multiply
    423,530.06x = 635,160.37 × 139,155.07
  4. Step 4: Simplify right side
    423,530.06x = 88,385,781,877.00
  5. Step 5: Solve for x
    x = 88,385,781,877.00/423,530.06
  6. Step 6: Final answer
    x = 208,688.33

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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.