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Finding the Fourth Proportional to 133,124.50, 183,712.13 and 72,695.26

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Solution

The fourth proportional to 133,124.50, 183,712.13 and 72,695.26 is: 100,319.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,124.50 : 183,712.13 = 72,695.26 : x
  2. Step 2: Convert to fraction form
    133,124.50/183,712.13 = 72,695.26/x
  3. Step 3: Cross multiply
    133,124.50x = 183,712.13 × 72,695.26
  4. Step 4: Simplify right side
    133,124.50x = 13,355,001,055.50
  5. Step 5: Solve for x
    x = 13,355,001,055.50/133,124.50
  6. Step 6: Final answer
    x = 100,319.63

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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.