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Finding the Fourth Proportional to 94,756.80, 142,135.20 and 42,110.40

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Solution

The fourth proportional to 94,756.80, 142,135.20 and 42,110.40 is: 63,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,756.80 : 142,135.20 = 42,110.40 : x
  2. Step 2: Convert to fraction form
    94,756.80/142,135.20 = 42,110.40/x
  3. Step 3: Cross multiply
    94,756.80x = 142,135.20 × 42,110.40
  4. Step 4: Simplify right side
    94,756.80x = 5,985,370,126.08
  5. Step 5: Solve for x
    x = 5,985,370,126.08/94,756.80
  6. Step 6: Final answer
    x = 63,165.60

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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.