Home / 130,488.98-180,087.30-73,128.02

Finding the Fourth Proportional to 130,488.98, 180,087.30 and 73,128.02

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Solution

The fourth proportional to 130,488.98, 180,087.30 and 73,128.02 is: 100,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,488.98 : 180,087.30 = 73,128.02 : x
  2. Step 2: Convert to fraction form
    130,488.98/180,087.30 = 73,128.02/x
  3. Step 3: Cross multiply
    130,488.98x = 180,087.30 × 73,128.02
  4. Step 4: Simplify right side
    130,488.98x = 13,169,426,775.71
  5. Step 5: Solve for x
    x = 13,169,426,775.71/130,488.98
  6. Step 6: Final answer
    x = 100,923.67

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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.