Home / 155,715.65-233,718.78-79,871.13

Finding the Fourth Proportional to 155,715.65, 233,718.78 and 79,871.13

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Solution

The fourth proportional to 155,715.65, 233,718.78 and 79,871.13 is: 119,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,715.65 : 233,718.78 = 79,871.13 : x
  2. Step 2: Convert to fraction form
    155,715.65/233,718.78 = 79,871.13/x
  3. Step 3: Cross multiply
    155,715.65x = 233,718.78 × 79,871.13
  4. Step 4: Simplify right side
    155,715.65x = 18,667,383,060.82
  5. Step 5: Solve for x
    x = 18,667,383,060.82/155,715.65
  6. Step 6: Final answer
    x = 119,881.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.