Home / 197,585.12-272,669.64-112,707.20

Finding the Fourth Proportional to 197,585.12, 272,669.64 and 112,707.20

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Solution

The fourth proportional to 197,585.12, 272,669.64 and 112,707.20 is: 155,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,585.12 : 272,669.64 = 112,707.20 : x
  2. Step 2: Convert to fraction form
    197,585.12/272,669.64 = 112,707.20/x
  3. Step 3: Cross multiply
    197,585.12x = 272,669.64 × 112,707.20
  4. Step 4: Simplify right side
    197,585.12x = 30,731,831,649.41
  5. Step 5: Solve for x
    x = 30,731,831,649.41/197,585.12
  6. Step 6: Final answer
    x = 155,537.18

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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.