Home / 157,636.07-217,538.34-86,017.67

Finding the Fourth Proportional to 157,636.07, 217,538.34 and 86,017.67

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Solution

The fourth proportional to 157,636.07, 217,538.34 and 86,017.67 is: 118,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,636.07 : 217,538.34 = 86,017.67 : x
  2. Step 2: Convert to fraction form
    157,636.07/217,538.34 = 86,017.67/x
  3. Step 3: Cross multiply
    157,636.07x = 217,538.34 × 86,017.67
  4. Step 4: Simplify right side
    157,636.07x = 18,712,141,142.47
  5. Step 5: Solve for x
    x = 18,712,141,142.47/157,636.07
  6. Step 6: Final answer
    x = 118,704.69

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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.