Home / 112,975.86-155,908.35-61,993.65

Finding the Fourth Proportional to 112,975.86, 155,908.35 and 61,993.65

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Solution

The fourth proportional to 112,975.86, 155,908.35 and 61,993.65 is: 85,552.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,975.86 : 155,908.35 = 61,993.65 : x
  2. Step 2: Convert to fraction form
    112,975.86/155,908.35 = 61,993.65/x
  3. Step 3: Cross multiply
    112,975.86x = 155,908.35 × 61,993.65
  4. Step 4: Simplify right side
    112,975.86x = 9,665,327,681.98
  5. Step 5: Solve for x
    x = 9,665,327,681.98/112,975.86
  6. Step 6: Final answer
    x = 85,552.15

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1.5x scale

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.