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Finding the Fourth Proportional to 124,077.60, 186,116.40 and 74,311.20

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Solution

The fourth proportional to 124,077.60, 186,116.40 and 74,311.20 is: 111,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,077.60 : 186,116.40 = 74,311.20 : x
  2. Step 2: Convert to fraction form
    124,077.60/186,116.40 = 74,311.20/x
  3. Step 3: Cross multiply
    124,077.60x = 186,116.40 × 74,311.20
  4. Step 4: Simplify right side
    124,077.60x = 13,830,533,023.68
  5. Step 5: Solve for x
    x = 13,830,533,023.68/124,077.60
  6. Step 6: Final answer
    x = 111,466.80

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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.