Home / 112,938.68-155,857.45-61,954.02

Finding the Fourth Proportional to 112,938.68, 155,857.45 and 61,954.02

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Solution

The fourth proportional to 112,938.68, 155,857.45 and 61,954.02 is: 85,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938.68 : 155,857.45 = 61,954.02 : x
  2. Step 2: Convert to fraction form
    112,938.68/155,857.45 = 61,954.02/x
  3. Step 3: Cross multiply
    112,938.68x = 155,857.45 × 61,954.02
  4. Step 4: Simplify right side
    112,938.68x = 9,655,995,574.45
  5. Step 5: Solve for x
    x = 9,655,995,574.45/112,938.68
  6. Step 6: Final answer
    x = 85,497.68

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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.