Home / 113,920.60-156,068.63-109,661.20

Finding the Fourth Proportional to 113,920.60, 156,068.63 and 109,661.20

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Solution

The fourth proportional to 113,920.60, 156,068.63 and 109,661.20 is: 150,233.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,920.60 : 156,068.63 = 109,661.20 : x
  2. Step 2: Convert to fraction form
    113,920.60/156,068.63 = 109,661.20/x
  3. Step 3: Cross multiply
    113,920.60x = 156,068.63 × 109,661.20
  4. Step 4: Simplify right side
    113,920.60x = 17,114,673,248.16
  5. Step 5: Solve for x
    x = 17,114,673,248.16/113,920.60
  6. Step 6: Final answer
    x = 150,233.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.