Home / 118,784.21-163,922.25-65,071.17

Finding the Fourth Proportional to 118,784.21, 163,922.25 and 65,071.17

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Solution

The fourth proportional to 118,784.21, 163,922.25 and 65,071.17 is: 89,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,784.21 : 163,922.25 = 65,071.17 : x
  2. Step 2: Convert to fraction form
    118,784.21/163,922.25 = 65,071.17/x
  3. Step 3: Cross multiply
    118,784.21x = 163,922.25 × 65,071.17
  4. Step 4: Simplify right side
    118,784.21x = 10,666,612,596.53
  5. Step 5: Solve for x
    x = 10,666,612,596.53/118,784.21
  6. Step 6: Final answer
    x = 89,798.24

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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.