Home / 133,220.48-183,838.56-72,790.16

Finding the Fourth Proportional to 133,220.48, 183,838.56 and 72,790.16

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Solution

The fourth proportional to 133,220.48, 183,838.56 and 72,790.16 is: 100,447.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,220.48 : 183,838.56 = 72,790.16 : x
  2. Step 2: Convert to fraction form
    133,220.48/183,838.56 = 72,790.16/x
  3. Step 3: Cross multiply
    133,220.48x = 183,838.56 × 72,790.16
  4. Step 4: Simplify right side
    133,220.48x = 13,381,638,196.57
  5. Step 5: Solve for x
    x = 13,381,638,196.57/133,220.48
  6. Step 6: Final answer
    x = 100,447.31

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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.