Home / 157,567.07-217,445.51-85,949.65

Finding the Fourth Proportional to 157,567.07, 217,445.51 and 85,949.65

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Solution

The fourth proportional to 157,567.07, 217,445.51 and 85,949.65 is: 118,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,567.07 : 217,445.51 = 85,949.65 : x
  2. Step 2: Convert to fraction form
    157,567.07/217,445.51 = 85,949.65/x
  3. Step 3: Cross multiply
    157,567.07x = 217,445.51 × 85,949.65
  4. Step 4: Simplify right side
    157,567.07x = 18,689,365,478.57
  5. Step 5: Solve for x
    x = 18,689,365,478.57/157,567.07
  6. Step 6: Final answer
    x = 118,612.13

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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.