Home / 155,155.20-213,640.32-116,970.24

Finding the Fourth Proportional to 155,155.20, 213,640.32 and 116,970.24

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Solution

The fourth proportional to 155,155.20, 213,640.32 and 116,970.24 is: 161,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,155.20 : 213,640.32 = 116,970.24 : x
  2. Step 2: Convert to fraction form
    155,155.20/213,640.32 = 116,970.24/x
  3. Step 3: Cross multiply
    155,155.20x = 213,640.32 × 116,970.24
  4. Step 4: Simplify right side
    155,155.20x = 24,989,559,504.08
  5. Step 5: Solve for x
    x = 24,989,559,504.08/155,155.20
  6. Step 6: Final answer
    x = 161,061.70

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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.