Home / 118,381.73-163,364.09-64,666.98

Finding the Fourth Proportional to 118,381.73, 163,364.09 and 64,666.98

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Solution

The fourth proportional to 118,381.73, 163,364.09 and 64,666.98 is: 89,238.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,381.73 : 163,364.09 = 64,666.98 : x
  2. Step 2: Convert to fraction form
    118,381.73/163,364.09 = 64,666.98/x
  3. Step 3: Cross multiply
    118,381.73x = 163,364.09 × 64,666.98
  4. Step 4: Simplify right side
    118,381.73x = 10,564,262,017.41
  5. Step 5: Solve for x
    x = 10,564,262,017.41/118,381.73
  6. Step 6: Final answer
    x = 89,238.96

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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.