Home / 130,548.07-180,154.77-73,187.11

Finding the Fourth Proportional to 130,548.07, 180,154.77 and 73,187.11

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Solution

The fourth proportional to 130,548.07, 180,154.77 and 73,187.11 is: 100,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,548.07 : 180,154.77 = 73,187.11 : x
  2. Step 2: Convert to fraction form
    130,548.07/180,154.77 = 73,187.11/x
  3. Step 3: Cross multiply
    130,548.07x = 180,154.77 × 73,187.11
  4. Step 4: Simplify right side
    130,548.07x = 13,185,006,969.01
  5. Step 5: Solve for x
    x = 13,185,006,969.01/130,548.07
  6. Step 6: Final answer
    x = 100,997.33

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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.