Home / 150,459.10-207,578.64-90,031.48

Finding the Fourth Proportional to 150,459.10, 207,578.64 and 90,031.48

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Solution

The fourth proportional to 150,459.10, 207,578.64 and 90,031.48 is: 124,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,459.10 : 207,578.64 = 90,031.48 : x
  2. Step 2: Convert to fraction form
    150,459.10/207,578.64 = 90,031.48/x
  3. Step 3: Cross multiply
    150,459.10x = 207,578.64 × 90,031.48
  4. Step 4: Simplify right side
    150,459.10x = 18,688,612,175.59
  5. Step 5: Solve for x
    x = 18,688,612,175.59/150,459.10
  6. Step 6: Final answer
    x = 124,210.58

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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.