Home / 138,090.93-207,330.33-70,671.18

Finding the Fourth Proportional to 138,090.93, 207,330.33 and 70,671.18

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Solution

The fourth proportional to 138,090.93, 207,330.33 and 70,671.18 is: 106,106.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,090.93 : 207,330.33 = 70,671.18 : x
  2. Step 2: Convert to fraction form
    138,090.93/207,330.33 = 70,671.18/x
  3. Step 3: Cross multiply
    138,090.93x = 207,330.33 × 70,671.18
  4. Step 4: Simplify right side
    138,090.93x = 14,652,280,113.40
  5. Step 5: Solve for x
    x = 14,652,280,113.40/138,090.93
  6. Step 6: Final answer
    x = 106,106.03

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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.