Home / 157,057.45-235,632.63-90,545.30

Finding the Fourth Proportional to 157,057.45, 235,632.63 and 90,545.30

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Solution

The fourth proportional to 157,057.45, 235,632.63 and 90,545.30 is: 135,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,057.45 : 235,632.63 = 90,545.30 : x
  2. Step 2: Convert to fraction form
    157,057.45/235,632.63 = 90,545.30/x
  3. Step 3: Cross multiply
    157,057.45x = 235,632.63 × 90,545.30
  4. Step 4: Simplify right side
    157,057.45x = 21,335,427,173.14
  5. Step 5: Solve for x
    x = 21,335,427,173.14/157,057.45
  6. Step 6: Final answer
    x = 135,844.73

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1.5x scale

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.