Home / 104,984.40-157,476.60-78,412.35

Finding the Fourth Proportional to 104,984.40, 157,476.60 and 78,412.35

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Solution

The fourth proportional to 104,984.40, 157,476.60 and 78,412.35 is: 117,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,984.40 : 157,476.60 = 78,412.35 : x
  2. Step 2: Convert to fraction form
    104,984.40/157,476.60 = 78,412.35/x
  3. Step 3: Cross multiply
    104,984.40x = 157,476.60 × 78,412.35
  4. Step 4: Simplify right side
    104,984.40x = 12,348,110,276.01
  5. Step 5: Solve for x
    x = 12,348,110,276.01/104,984.40
  6. Step 6: Final answer
    x = 117,618.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.