Home / 130,449.59-180,382.81-103,545.39

Finding the Fourth Proportional to 130,449.59, 180,382.81 and 103,545.39

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Solution

The fourth proportional to 130,449.59, 180,382.81 and 103,545.39 is: 143,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,449.59 : 180,382.81 = 103,545.39 : x
  2. Step 2: Convert to fraction form
    130,449.59/180,382.81 = 103,545.39/x
  3. Step 3: Cross multiply
    130,449.59x = 180,382.81 × 103,545.39
  4. Step 4: Simplify right side
    130,449.59x = 18,677,807,893.02
  5. Step 5: Solve for x
    x = 18,677,807,893.02/130,449.59
  6. Step 6: Final answer
    x = 143,180.27

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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.