Home / 112,736.51-155,501.62-72,501.18

Finding the Fourth Proportional to 112,736.51, 155,501.62 and 72,501.18

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Solution

The fourth proportional to 112,736.51, 155,501.62 and 72,501.18 is: 100,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,736.51 : 155,501.62 = 72,501.18 : x
  2. Step 2: Convert to fraction form
    112,736.51/155,501.62 = 72,501.18/x
  3. Step 3: Cross multiply
    112,736.51x = 155,501.62 × 72,501.18
  4. Step 4: Simplify right side
    112,736.51x = 11,274,050,585.35
  5. Step 5: Solve for x
    x = 11,274,050,585.35/112,736.51
  6. Step 6: Final answer
    x = 100,003.55

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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.