Home / 113,148.60-156,127.73-65,392.74

Finding the Fourth Proportional to 113,148.60, 156,127.73 and 65,392.74

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Solution

The fourth proportional to 113,148.60, 156,127.73 and 65,392.74 is: 90,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,148.60 : 156,127.73 = 65,392.74 : x
  2. Step 2: Convert to fraction form
    113,148.60/156,127.73 = 65,392.74/x
  3. Step 3: Cross multiply
    113,148.60x = 156,127.73 × 65,392.74
  4. Step 4: Simplify right side
    113,148.60x = 10,209,620,054.68
  5. Step 5: Solve for x
    x = 10,209,620,054.68/113,148.60
  6. Step 6: Final answer
    x = 90,231.96

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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.