Home / 133,111.51-183,602.77-79,355.05

Finding the Fourth Proportional to 133,111.51, 183,602.77 and 79,355.05

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Solution

The fourth proportional to 133,111.51, 183,602.77 and 79,355.05 is: 109,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,111.51 : 183,602.77 = 79,355.05 : x
  2. Step 2: Convert to fraction form
    133,111.51/183,602.77 = 79,355.05/x
  3. Step 3: Cross multiply
    133,111.51x = 183,602.77 × 79,355.05
  4. Step 4: Simplify right side
    133,111.51x = 14,569,806,336.09
  5. Step 5: Solve for x
    x = 14,569,806,336.09/133,111.51
  6. Step 6: Final answer
    x = 109,455.65

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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.