Home / 130,642.74-180,290.61-92,470.50

Finding the Fourth Proportional to 130,642.74, 180,290.61 and 92,470.50

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Solution

The fourth proportional to 130,642.74, 180,290.61 and 92,470.50 is: 127,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,642.74 : 180,290.61 = 92,470.50 : x
  2. Step 2: Convert to fraction form
    130,642.74/180,290.61 = 92,470.50/x
  3. Step 3: Cross multiply
    130,642.74x = 180,290.61 × 92,470.50
  4. Step 4: Simplify right side
    130,642.74x = 16,671,562,852.01
  5. Step 5: Solve for x
    x = 16,671,562,852.01/130,642.74
  6. Step 6: Final answer
    x = 127,611.86

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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.