Home / 185,193.84-255,566.52-100,312.56

Finding the Fourth Proportional to 185,193.84, 255,566.52 and 100,312.56

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Solution

The fourth proportional to 185,193.84, 255,566.52 and 100,312.56 is: 138,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,193.84 : 255,566.52 = 100,312.56 : x
  2. Step 2: Convert to fraction form
    185,193.84/255,566.52 = 100,312.56/x
  3. Step 3: Cross multiply
    185,193.84x = 255,566.52 × 100,312.56
  4. Step 4: Simplify right side
    185,193.84x = 25,636,531,871.49
  5. Step 5: Solve for x
    x = 25,636,531,871.49/185,193.84
  6. Step 6: Final answer
    x = 138,430.80

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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.