Home / 470,513.04-705,781.08-138,099.60

Finding the Fourth Proportional to 470,513.04, 705,781.08 and 138,099.60

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Solution

The fourth proportional to 470,513.04, 705,781.08 and 138,099.60 is: 207,152.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,513.04 : 705,781.08 = 138,099.60 : x
  2. Step 2: Convert to fraction form
    470,513.04/705,781.08 = 138,099.60/x
  3. Step 3: Cross multiply
    470,513.04x = 705,781.08 × 138,099.60
  4. Step 4: Simplify right side
    470,513.04x = 97,468,084,835.57
  5. Step 5: Solve for x
    x = 97,468,084,835.57/470,513.04
  6. Step 6: Final answer
    x = 207,152.78

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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.