Home / 130,483.09-180,429.15-103,578.94

Finding the Fourth Proportional to 130,483.09, 180,429.15 and 103,578.94

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Solution

The fourth proportional to 130,483.09, 180,429.15 and 103,578.94 is: 143,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,483.09 : 180,429.15 = 103,578.94 : x
  2. Step 2: Convert to fraction form
    130,483.09/180,429.15 = 103,578.94/x
  3. Step 3: Cross multiply
    130,483.09x = 180,429.15 × 103,578.94
  4. Step 4: Simplify right side
    130,483.09x = 18,688,660,102.10
  5. Step 5: Solve for x
    x = 18,688,660,102.10/130,483.09
  6. Step 6: Final answer
    x = 143,226.68

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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.