Home / 152,041.53-209,782.51-90,775.81

Finding the Fourth Proportional to 152,041.53, 209,782.51 and 90,775.81

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Solution

The fourth proportional to 152,041.53, 209,782.51 and 90,775.81 is: 125,249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,041.53 : 209,782.51 = 90,775.81 : x
  2. Step 2: Convert to fraction form
    152,041.53/209,782.51 = 90,775.81/x
  3. Step 3: Cross multiply
    152,041.53x = 209,782.51 × 90,775.81
  4. Step 4: Simplify right side
    152,041.53x = 19,043,177,269.08
  5. Step 5: Solve for x
    x = 19,043,177,269.08/152,041.53
  6. Step 6: Final answer
    x = 125,249.84

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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.