Home / 157,225.73-216,975.40-85,609.67

Finding the Fourth Proportional to 157,225.73, 216,975.40 and 85,609.67

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Solution

The fourth proportional to 157,225.73, 216,975.40 and 85,609.67 is: 118,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,225.73 : 216,975.40 = 85,609.67 : x
  2. Step 2: Convert to fraction form
    157,225.73/216,975.40 = 85,609.67/x
  3. Step 3: Cross multiply
    157,225.73x = 216,975.40 × 85,609.67
  4. Step 4: Simplify right side
    157,225.73x = 18,575,192,392.12
  5. Step 5: Solve for x
    x = 18,575,192,392.12/157,225.73
  6. Step 6: Final answer
    x = 118,143.46

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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.