Home / 109,708.12-151,397.21-59,407.12

Finding the Fourth Proportional to 109,708.12, 151,397.21 and 59,407.12

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Solution

The fourth proportional to 109,708.12, 151,397.21 and 59,407.12 is: 81,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,708.12 : 151,397.21 = 59,407.12 : x
  2. Step 2: Convert to fraction form
    109,708.12/151,397.21 = 59,407.12/x
  3. Step 3: Cross multiply
    109,708.12x = 151,397.21 × 59,407.12
  4. Step 4: Simplify right side
    109,708.12x = 8,994,072,222.14
  5. Step 5: Solve for x
    x = 8,994,072,222.14/109,708.12
  6. Step 6: Final answer
    x = 81,981.83

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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.