Home / 133,074.90-183,643.83-72,646.89

Finding the Fourth Proportional to 133,074.90, 183,643.83 and 72,646.89

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Solution

The fourth proportional to 133,074.90, 183,643.83 and 72,646.89 is: 100,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,074.90 : 183,643.83 = 72,646.89 : x
  2. Step 2: Convert to fraction form
    133,074.90/183,643.83 = 72,646.89/x
  3. Step 3: Cross multiply
    133,074.90x = 183,643.83 × 72,646.89
  4. Step 4: Simplify right side
    133,074.90x = 13,341,153,117.19
  5. Step 5: Solve for x
    x = 13,341,153,117.19/133,074.90
  6. Step 6: Final answer
    x = 100,252.96

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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.