Home / 100,937.08-151,429.28-30,816.40

Finding the Fourth Proportional to 100,937.08, 151,429.28 and 30,816.40

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Solution

The fourth proportional to 100,937.08, 151,429.28 and 30,816.40 is: 46,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,937.08 : 151,429.28 = 30,816.40 : x
  2. Step 2: Convert to fraction form
    100,937.08/151,429.28 = 30,816.40/x
  3. Step 3: Cross multiply
    100,937.08x = 151,429.28 × 30,816.40
  4. Step 4: Simplify right side
    100,937.08x = 4,666,505,264.19
  5. Step 5: Solve for x
    x = 4,666,505,264.19/100,937.08
  6. Step 6: Final answer
    x = 46,231.82

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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.