Home / 134,030.07-184,964.69-72,778.80

Finding the Fourth Proportional to 134,030.07, 184,964.69 and 72,778.80

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Solution

The fourth proportional to 134,030.07, 184,964.69 and 72,778.80 is: 100,436.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,030.07 : 184,964.69 = 72,778.80 : x
  2. Step 2: Convert to fraction form
    134,030.07/184,964.69 = 72,778.80/x
  3. Step 3: Cross multiply
    134,030.07x = 184,964.69 × 72,778.80
  4. Step 4: Simplify right side
    134,030.07x = 13,461,508,851.45
  5. Step 5: Solve for x
    x = 13,461,508,851.45/134,030.07
  6. Step 6: Final answer
    x = 100,436.49

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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.