Home / 118,811.07-163,918.89-67,787.16

Finding the Fourth Proportional to 118,811.07, 163,918.89 and 67,787.16

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Solution

The fourth proportional to 118,811.07, 163,918.89 and 67,787.16 is: 93,523.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,811.07 : 163,918.89 = 67,787.16 : x
  2. Step 2: Convert to fraction form
    118,811.07/163,918.89 = 67,787.16/x
  3. Step 3: Cross multiply
    118,811.07x = 163,918.89 × 67,787.16
  4. Step 4: Simplify right side
    118,811.07x = 11,111,596,023.45
  5. Step 5: Solve for x
    x = 11,111,596,023.45/118,811.07
  6. Step 6: Final answer
    x = 93,523.24

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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.