Home / 157,445.08-217,280.28-85,829.20

Finding the Fourth Proportional to 157,445.08, 217,280.28 and 85,829.20

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Solution

The fourth proportional to 157,445.08, 217,280.28 and 85,829.20 is: 118,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,445.08 : 217,280.28 = 85,829.20 : x
  2. Step 2: Convert to fraction form
    157,445.08/217,280.28 = 85,829.20/x
  3. Step 3: Cross multiply
    157,445.08x = 217,280.28 × 85,829.20
  4. Step 4: Simplify right side
    157,445.08x = 18,648,992,608.18
  5. Step 5: Solve for x
    x = 18,648,992,608.18/157,445.08
  6. Step 6: Final answer
    x = 118,447.60

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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.