Home / 99,702.14-137,588.95-63,940.59

Finding the Fourth Proportional to 99,702.14, 137,588.95 and 63,940.59

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Solution

The fourth proportional to 99,702.14, 137,588.95 and 63,940.59 is: 88,238.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,702.14 : 137,588.95 = 63,940.59 : x
  2. Step 2: Convert to fraction form
    99,702.14/137,588.95 = 63,940.59/x
  3. Step 3: Cross multiply
    99,702.14x = 137,588.95 × 63,940.59
  4. Step 4: Simplify right side
    99,702.14x = 8,797,518,900.24
  5. Step 5: Solve for x
    x = 8,797,518,900.24/99,702.14
  6. Step 6: Final answer
    x = 88,238.01

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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.