Home / 197,721.81-272,875.64-112,851.63

Finding the Fourth Proportional to 197,721.81, 272,875.64 and 112,851.63

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Solution

The fourth proportional to 197,721.81, 272,875.64 and 112,851.63 is: 155,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,721.81 : 272,875.64 = 112,851.63 : x
  2. Step 2: Convert to fraction form
    197,721.81/272,875.64 = 112,851.63/x
  3. Step 3: Cross multiply
    197,721.81x = 272,875.64 × 112,851.63
  4. Step 4: Simplify right side
    197,721.81x = 30,794,460,197.04
  5. Step 5: Solve for x
    x = 30,794,460,197.04/197,721.81
  6. Step 6: Final answer
    x = 155,746.40

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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.