Home / 153,601.49-211,925.89-99,965.45

Finding the Fourth Proportional to 153,601.49, 211,925.89 and 99,965.45

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Solution

The fourth proportional to 153,601.49, 211,925.89 and 99,965.45 is: 137,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,601.49 : 211,925.89 = 99,965.45 : x
  2. Step 2: Convert to fraction form
    153,601.49/211,925.89 = 99,965.45/x
  3. Step 3: Cross multiply
    153,601.49x = 211,925.89 × 99,965.45
  4. Step 4: Simplify right side
    153,601.49x = 21,185,266,960.50
  5. Step 5: Solve for x
    x = 21,185,266,960.50/153,601.49
  6. Step 6: Final answer
    x = 137,923.58

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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.