Home / 153,599.49-211,923.14-99,963.45

Finding the Fourth Proportional to 153,599.49, 211,923.14 and 99,963.45

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Solution

The fourth proportional to 153,599.49, 211,923.14 and 99,963.45 is: 137,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,599.49 : 211,923.14 = 99,963.45 : x
  2. Step 2: Convert to fraction form
    153,599.49/211,923.14 = 99,963.45/x
  3. Step 3: Cross multiply
    153,599.49x = 211,923.14 × 99,963.45
  4. Step 4: Simplify right side
    153,599.49x = 21,184,567,709.42
  5. Step 5: Solve for x
    x = 21,184,567,709.42/153,599.49
  6. Step 6: Final answer
    x = 137,920.82

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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.