Home / 112,499.28-155,242.64-61,502.54

Finding the Fourth Proportional to 112,499.28, 155,242.64 and 61,502.54

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Solution

The fourth proportional to 112,499.28, 155,242.64 and 61,502.54 is: 84,870.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,499.28 : 155,242.64 = 61,502.54 : x
  2. Step 2: Convert to fraction form
    112,499.28/155,242.64 = 61,502.54/x
  3. Step 3: Cross multiply
    112,499.28x = 155,242.64 × 61,502.54
  4. Step 4: Simplify right side
    112,499.28x = 9,547,816,927.09
  5. Step 5: Solve for x
    x = 9,547,816,927.09/112,499.28
  6. Step 6: Final answer
    x = 84,870.03

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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.