Home / 133,045.51-183,599.26-72,616.90

Finding the Fourth Proportional to 133,045.51, 183,599.26 and 72,616.90

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Solution

The fourth proportional to 133,045.51, 183,599.26 and 72,616.90 is: 100,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,045.51 : 183,599.26 = 72,616.90 : x
  2. Step 2: Convert to fraction form
    133,045.51/183,599.26 = 72,616.90/x
  3. Step 3: Cross multiply
    133,045.51x = 183,599.26 × 72,616.90
  4. Step 4: Simplify right side
    133,045.51x = 13,332,409,103.49
  5. Step 5: Solve for x
    x = 13,332,409,103.49/133,045.51
  6. Step 6: Final answer
    x = 100,209.39

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1.5x scale

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.