Home / 180,128.90-248,590.75-99,554.69

Finding the Fourth Proportional to 180,128.90, 248,590.75 and 99,554.69

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Solution

The fourth proportional to 180,128.90, 248,590.75 and 99,554.69 is: 137,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,128.90 : 248,590.75 = 99,554.69 : x
  2. Step 2: Convert to fraction form
    180,128.90/248,590.75 = 99,554.69/x
  3. Step 3: Cross multiply
    180,128.90x = 248,590.75 × 99,554.69
  4. Step 4: Simplify right side
    180,128.90x = 24,748,375,053.12
  5. Step 5: Solve for x
    x = 24,748,375,053.12/180,128.90
  6. Step 6: Final answer
    x = 137,392.58

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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.