Home / 180,020.72-248,443.12-99,455.28

Finding the Fourth Proportional to 180,020.72, 248,443.12 and 99,455.28

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Solution

The fourth proportional to 180,020.72, 248,443.12 and 99,455.28 is: 137,256.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,020.72 : 248,443.12 = 99,455.28 : x
  2. Step 2: Convert to fraction form
    180,020.72/248,443.12 = 99,455.28/x
  3. Step 3: Cross multiply
    180,020.72x = 248,443.12 × 99,455.28
  4. Step 4: Simplify right side
    180,020.72x = 24,708,980,063.67
  5. Step 5: Solve for x
    x = 24,708,980,063.67/180,020.72
  6. Step 6: Final answer
    x = 137,256.31

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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.