Home / 130,539.86-180,157.74-73,188.98

Finding the Fourth Proportional to 130,539.86, 180,157.74 and 73,188.98

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Solution

The fourth proportional to 130,539.86, 180,157.74 and 73,188.98 is: 101,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,539.86 : 180,157.74 = 73,188.98 : x
  2. Step 2: Convert to fraction form
    130,539.86/180,157.74 = 73,188.98/x
  3. Step 3: Cross multiply
    130,539.86x = 180,157.74 × 73,188.98
  4. Step 4: Simplify right side
    130,539.86x = 13,185,561,229.71
  5. Step 5: Solve for x
    x = 13,185,561,229.71/130,539.86
  6. Step 6: Final answer
    x = 101,007.93

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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.