Home / 133,089.90-183,656.30-72,648.50

Finding the Fourth Proportional to 133,089.90, 183,656.30 and 72,648.50

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Solution

The fourth proportional to 133,089.90, 183,656.30 and 72,648.50 is: 100,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,089.90 : 183,656.30 = 72,648.50 : x
  2. Step 2: Convert to fraction form
    133,089.90/183,656.30 = 72,648.50/x
  3. Step 3: Cross multiply
    133,089.90x = 183,656.30 × 72,648.50
  4. Step 4: Simplify right side
    133,089.90x = 13,342,354,710.55
  5. Step 5: Solve for x
    x = 13,342,354,710.55/133,089.90
  6. Step 6: Final answer
    x = 100,250.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.