Home / 113,275.48-156,261.26-67,931.68

Finding the Fourth Proportional to 113,275.48, 156,261.26 and 67,931.68

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Solution

The fourth proportional to 113,275.48, 156,261.26 and 67,931.68 is: 93,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,275.48 : 156,261.26 = 67,931.68 : x
  2. Step 2: Convert to fraction form
    113,275.48/156,261.26 = 67,931.68/x
  3. Step 3: Cross multiply
    113,275.48x = 156,261.26 × 67,931.68
  4. Step 4: Simplify right side
    113,275.48x = 10,615,089,910.72
  5. Step 5: Solve for x
    x = 10,615,089,910.72/113,275.48
  6. Step 6: Final answer
    x = 93,710.39

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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.