Home / 130,676.40-180,374.04-103,866.48

Finding the Fourth Proportional to 130,676.40, 180,374.04 and 103,866.48

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Solution

The fourth proportional to 130,676.40, 180,374.04 and 103,866.48 is: 143,368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,676.40 : 180,374.04 = 103,866.48 : x
  2. Step 2: Convert to fraction form
    130,676.40/180,374.04 = 103,866.48/x
  3. Step 3: Cross multiply
    130,676.40x = 180,374.04 × 103,866.48
  4. Step 4: Simplify right side
    130,676.40x = 18,734,816,618.18
  5. Step 5: Solve for x
    x = 18,734,816,618.18/130,676.40
  6. Step 6: Final answer
    x = 143,368.02

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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.