Home / 157,225.48-216,975.05-85,609.42

Finding the Fourth Proportional to 157,225.48, 216,975.05 and 85,609.42

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Solution

The fourth proportional to 157,225.48, 216,975.05 and 85,609.42 is: 118,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,225.48 : 216,975.05 = 85,609.42 : x
  2. Step 2: Convert to fraction form
    157,225.48/216,975.05 = 85,609.42/x
  3. Step 3: Cross multiply
    157,225.48x = 216,975.05 × 85,609.42
  4. Step 4: Simplify right side
    157,225.48x = 18,575,108,184.97
  5. Step 5: Solve for x
    x = 18,575,108,184.97/157,225.48
  6. Step 6: Final answer
    x = 118,143.12

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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.