Home / 157,708.86-217,635.03-86,088.66

Finding the Fourth Proportional to 157,708.86, 217,635.03 and 86,088.66

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Solution

The fourth proportional to 157,708.86, 217,635.03 and 86,088.66 is: 118,800.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,708.86 : 217,635.03 = 86,088.66 : x
  2. Step 2: Convert to fraction form
    157,708.86/217,635.03 = 86,088.66/x
  3. Step 3: Cross multiply
    157,708.86x = 217,635.03 × 86,088.66
  4. Step 4: Simplify right side
    157,708.86x = 18,735,908,101.76
  5. Step 5: Solve for x
    x = 18,735,908,101.76/157,708.86
  6. Step 6: Final answer
    x = 118,800.61

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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.