Home / 209,931.40-314,887.52-67,783.24

Finding the Fourth Proportional to 209,931.40, 314,887.52 and 67,783.24

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Solution

The fourth proportional to 209,931.40, 314,887.52 and 67,783.24 is: 101,671.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,931.40 : 314,887.52 = 67,783.24 : x
  2. Step 2: Convert to fraction form
    209,931.40/314,887.52 = 67,783.24/x
  3. Step 3: Cross multiply
    209,931.40x = 314,887.52 × 67,783.24
  4. Step 4: Simplify right side
    209,931.40x = 21,344,095,723.40
  5. Step 5: Solve for x
    x = 21,344,095,723.40/209,931.40
  6. Step 6: Final answer
    x = 101,671.77

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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.