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Finding the Fourth Proportional to 157,591.55, 217,476.85 and 85,973.07

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Solution

The fourth proportional to 157,591.55, 217,476.85 and 85,973.07 is: 118,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,591.55 : 217,476.85 = 85,973.07 : x
  2. Step 2: Convert to fraction form
    157,591.55/217,476.85 = 85,973.07/x
  3. Step 3: Cross multiply
    157,591.55x = 217,476.85 × 85,973.07
  4. Step 4: Simplify right side
    157,591.55x = 18,697,152,448.43
  5. Step 5: Solve for x
    x = 18,697,152,448.43/157,591.55
  6. Step 6: Final answer
    x = 118,643.12

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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.