Home / 142,682.40-213,963.12-76,108.32

Finding the Fourth Proportional to 142,682.40, 213,963.12 and 76,108.32

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Solution

The fourth proportional to 142,682.40, 213,963.12 and 76,108.32 is: 114,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,682.40 : 213,963.12 = 76,108.32 : x
  2. Step 2: Convert to fraction form
    142,682.40/213,963.12 = 76,108.32/x
  3. Step 3: Cross multiply
    142,682.40x = 213,963.12 × 76,108.32
  4. Step 4: Simplify right side
    142,682.40x = 16,284,373,605.16
  5. Step 5: Solve for x
    x = 16,284,373,605.16/142,682.40
  6. Step 6: Final answer
    x = 114,130.22

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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.