Home / 133,070.90-183,630.08-72,629.50

Finding the Fourth Proportional to 133,070.90, 183,630.08 and 72,629.50

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Solution

The fourth proportional to 133,070.90, 183,630.08 and 72,629.50 is: 100,224.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,070.90 : 183,630.08 = 72,629.50 : x
  2. Step 2: Convert to fraction form
    133,070.90/183,630.08 = 72,629.50/x
  3. Step 3: Cross multiply
    133,070.90x = 183,630.08 × 72,629.50
  4. Step 4: Simplify right side
    133,070.90x = 13,336,960,895.36
  5. Step 5: Solve for x
    x = 13,336,960,895.36/133,070.90
  6. Step 6: Final answer
    x = 100,224.47

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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.