Home / 142,455.04-213,787.55-67,575.40

Finding the Fourth Proportional to 142,455.04, 213,787.55 and 67,575.40

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Solution

The fourth proportional to 142,455.04, 213,787.55 and 67,575.40 is: 101,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,455.04 : 213,787.55 = 67,575.40 : x
  2. Step 2: Convert to fraction form
    142,455.04/213,787.55 = 67,575.40/x
  3. Step 3: Cross multiply
    142,455.04x = 213,787.55 × 67,575.40
  4. Step 4: Simplify right side
    142,455.04x = 14,446,779,206.27
  5. Step 5: Solve for x
    x = 14,446,779,206.27/142,455.04
  6. Step 6: Final answer
    x = 101,412.90

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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.