Home / 113,405.44-156,434.33-70,890.16

Finding the Fourth Proportional to 113,405.44, 156,434.33 and 70,890.16

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Solution

The fourth proportional to 113,405.44, 156,434.33 and 70,890.16 is: 97,787.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,405.44 : 156,434.33 = 70,890.16 : x
  2. Step 2: Convert to fraction form
    113,405.44/156,434.33 = 70,890.16/x
  3. Step 3: Cross multiply
    113,405.44x = 156,434.33 × 70,890.16
  4. Step 4: Simplify right side
    113,405.44x = 11,089,654,683.19
  5. Step 5: Solve for x
    x = 11,089,654,683.19/113,405.44
  6. Step 6: Final answer
    x = 97,787.68

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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.