Home / 112,581.16-155,382.87-72,345.22

Finding the Fourth Proportional to 112,581.16, 155,382.87 and 72,345.22

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Solution

The fourth proportional to 112,581.16, 155,382.87 and 72,345.22 is: 99,849.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,581.16 : 155,382.87 = 72,345.22 : x
  2. Step 2: Convert to fraction form
    112,581.16/155,382.87 = 72,345.22/x
  3. Step 3: Cross multiply
    112,581.16x = 155,382.87 × 72,345.22
  4. Step 4: Simplify right side
    112,581.16x = 11,241,207,914.38
  5. Step 5: Solve for x
    x = 11,241,207,914.38/112,581.16
  6. Step 6: Final answer
    x = 99,849.81

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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.