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Finding the Fourth Proportional to 94,749.60, 142,124.40 and 79,312.80

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Solution

The fourth proportional to 94,749.60, 142,124.40 and 79,312.80 is: 118,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,749.60 : 142,124.40 = 79,312.80 : x
  2. Step 2: Convert to fraction form
    94,749.60/142,124.40 = 79,312.80/x
  3. Step 3: Cross multiply
    94,749.60x = 142,124.40 × 79,312.80
  4. Step 4: Simplify right side
    94,749.60x = 11,272,284,112.32
  5. Step 5: Solve for x
    x = 11,272,284,112.32/94,749.60
  6. Step 6: Final answer
    x = 118,969.20

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1.5x scale

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.