Home / 99,701.07-137,509.65-63,894.39

Finding the Fourth Proportional to 99,701.07, 137,509.65 and 63,894.39

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Solution

The fourth proportional to 99,701.07, 137,509.65 and 63,894.39 is: 88,124.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,701.07 : 137,509.65 = 63,894.39 : x
  2. Step 2: Convert to fraction form
    99,701.07/137,509.65 = 63,894.39/x
  3. Step 3: Cross multiply
    99,701.07x = 137,509.65 × 63,894.39
  4. Step 4: Simplify right side
    99,701.07x = 8,786,095,205.86
  5. Step 5: Solve for x
    x = 8,786,095,205.86/99,701.07
  6. Step 6: Final answer
    x = 88,124.38

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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.