Home / 141,606.43-212,218.28-78,424.00

Finding the Fourth Proportional to 141,606.43, 212,218.28 and 78,424.00

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Solution

The fourth proportional to 141,606.43, 212,218.28 and 78,424.00 is: 117,530.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,606.43 : 212,218.28 = 78,424.00 : x
  2. Step 2: Convert to fraction form
    141,606.43/212,218.28 = 78,424.00/x
  3. Step 3: Cross multiply
    141,606.43x = 212,218.28 × 78,424.00
  4. Step 4: Simplify right side
    141,606.43x = 16,643,005,762.14
  5. Step 5: Solve for x
    x = 16,643,005,762.14/141,606.43
  6. Step 6: Final answer
    x = 117,530.02

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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.