Home / 130,499.40-180,101.81-73,148.46

Finding the Fourth Proportional to 130,499.40, 180,101.81 and 73,148.46

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Solution

The fourth proportional to 130,499.40, 180,101.81 and 73,148.46 is: 100,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,499.40 : 180,101.81 = 73,148.46 : x
  2. Step 2: Convert to fraction form
    130,499.40/180,101.81 = 73,148.46/x
  3. Step 3: Cross multiply
    130,499.40x = 180,101.81 × 73,148.46
  4. Step 4: Simplify right side
    130,499.40x = 13,174,170,044.71
  5. Step 5: Solve for x
    x = 13,174,170,044.71/130,499.40
  6. Step 6: Final answer
    x = 100,951.96

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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.