Home / 142,438.02-213,506.37-53,653.11

Finding the Fourth Proportional to 142,438.02, 213,506.37 and 53,653.11

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Solution

The fourth proportional to 142,438.02, 213,506.37 and 53,653.11 is: 80,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,438.02 : 213,506.37 = 53,653.11 : x
  2. Step 2: Convert to fraction form
    142,438.02/213,506.37 = 53,653.11/x
  3. Step 3: Cross multiply
    142,438.02x = 213,506.37 × 53,653.11
  4. Step 4: Simplify right side
    142,438.02x = 11,455,280,755.31
  5. Step 5: Solve for x
    x = 11,455,280,755.31/142,438.02
  6. Step 6: Final answer
    x = 80,422.91

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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.