Home / 153,276.42-211,401.66-99,578.76

Finding the Fourth Proportional to 153,276.42, 211,401.66 and 99,578.76

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Solution

The fourth proportional to 153,276.42, 211,401.66 and 99,578.76 is: 137,340.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,276.42 : 211,401.66 = 99,578.76 : x
  2. Step 2: Convert to fraction form
    153,276.42/211,401.66 = 99,578.76/x
  3. Step 3: Cross multiply
    153,276.42x = 211,401.66 × 99,578.76
  4. Step 4: Simplify right side
    153,276.42x = 21,051,115,164.74
  5. Step 5: Solve for x
    x = 21,051,115,164.74/153,276.42
  6. Step 6: Final answer
    x = 137,340.86

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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.