Home / 157,180.30-216,495.61-120,812.20

Finding the Fourth Proportional to 157,180.30, 216,495.61 and 120,812.20

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Solution

The fourth proportional to 157,180.30, 216,495.61 and 120,812.20 is: 166,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,180.30 : 216,495.61 = 120,812.20 : x
  2. Step 2: Convert to fraction form
    157,180.30/216,495.61 = 120,812.20/x
  3. Step 3: Cross multiply
    157,180.30x = 216,495.61 × 120,812.20
  4. Step 4: Simplify right side
    157,180.30x = 26,155,310,126.51
  5. Step 5: Solve for x
    x = 26,155,310,126.51/157,180.30
  6. Step 6: Final answer
    x = 166,403.24

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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.