Home / 118,787.60-163,927.07-65,071.43

Finding the Fourth Proportional to 118,787.60, 163,927.07 and 65,071.43

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Solution

The fourth proportional to 118,787.60, 163,927.07 and 65,071.43 is: 89,798.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,787.60 : 163,927.07 = 65,071.43 : x
  2. Step 2: Convert to fraction form
    118,787.60/163,927.07 = 65,071.43/x
  3. Step 3: Cross multiply
    118,787.60x = 163,927.07 × 65,071.43
  4. Step 4: Simplify right side
    118,787.60x = 10,666,968,535.25
  5. Step 5: Solve for x
    x = 10,666,968,535.25/118,787.60
  6. Step 6: Final answer
    x = 89,798.67

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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.