Home / 130,538.86-180,156.36-73,187.98

Finding the Fourth Proportional to 130,538.86, 180,156.36 and 73,187.98

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Solution

The fourth proportional to 130,538.86, 180,156.36 and 73,187.98 is: 101,006.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,538.86 : 180,156.36 = 73,187.98 : x
  2. Step 2: Convert to fraction form
    130,538.86/180,156.36 = 73,187.98/x
  3. Step 3: Cross multiply
    130,538.86x = 180,156.36 × 73,187.98
  4. Step 4: Simplify right side
    130,538.86x = 13,185,280,072.55
  5. Step 5: Solve for x
    x = 13,185,280,072.55/130,538.86
  6. Step 6: Final answer
    x = 101,006.55

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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.