Home / 113,689.56-156,903.30-72,325.26

Finding the Fourth Proportional to 113,689.56, 156,903.30 and 72,325.26

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Solution

The fourth proportional to 113,689.56, 156,903.30 and 72,325.26 is: 99,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,689.56 : 156,903.30 = 72,325.26 : x
  2. Step 2: Convert to fraction form
    113,689.56/156,903.30 = 72,325.26/x
  3. Step 3: Cross multiply
    113,689.56x = 156,903.30 × 72,325.26
  4. Step 4: Simplify right side
    113,689.56x = 11,348,071,967.36
  5. Step 5: Solve for x
    x = 11,348,071,967.36/113,689.56
  6. Step 6: Final answer
    x = 99,816.31

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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.