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Finding the Fourth Proportional to 150,019.17, 207,026.53 and 85,486.57

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Solution

The fourth proportional to 150,019.17, 207,026.53 and 85,486.57 is: 117,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,019.17 : 207,026.53 = 85,486.57 : x
  2. Step 2: Convert to fraction form
    150,019.17/207,026.53 = 85,486.57/x
  3. Step 3: Cross multiply
    150,019.17x = 207,026.53 × 85,486.57
  4. Step 4: Simplify right side
    150,019.17x = 17,697,987,948.70
  5. Step 5: Solve for x
    x = 17,697,987,948.70/150,019.17
  6. Step 6: Final answer
    x = 117,971.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.