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Finding the Fourth Proportional to 157,159.85, 216,885.48 and 85,544.69

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Solution

The fourth proportional to 157,159.85, 216,885.48 and 85,544.69 is: 118,054.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,159.85 : 216,885.48 = 85,544.69 : x
  2. Step 2: Convert to fraction form
    157,159.85/216,885.48 = 85,544.69/x
  3. Step 3: Cross multiply
    157,159.85x = 216,885.48 × 85,544.69
  4. Step 4: Simplify right side
    157,159.85x = 18,553,401,152.10
  5. Step 5: Solve for x
    x = 18,553,401,152.10/157,159.85
  6. Step 6: Final answer
    x = 118,054.33

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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.