Home / 180,007.20-248,405.40-99,428.40

Finding the Fourth Proportional to 180,007.20, 248,405.40 and 99,428.40

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Solution

The fourth proportional to 180,007.20, 248,405.40 and 99,428.40 is: 137,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,007.20 : 248,405.40 = 99,428.40 : x
  2. Step 2: Convert to fraction form
    180,007.20/248,405.40 = 99,428.40/x
  3. Step 3: Cross multiply
    180,007.20x = 248,405.40 × 99,428.40
  4. Step 4: Simplify right side
    180,007.20x = 24,698,551,473.36
  5. Step 5: Solve for x
    x = 24,698,551,473.36/180,007.20
  6. Step 6: Final answer
    x = 137,208.69

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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.