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Finding the Fourth Proportional to 124,151.76, 171,235.26 and 85,975.08

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Solution

The fourth proportional to 124,151.76, 171,235.26 and 85,975.08 is: 118,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,151.76 : 171,235.26 = 85,975.08 : x
  2. Step 2: Convert to fraction form
    124,151.76/171,235.26 = 85,975.08/x
  3. Step 3: Cross multiply
    124,151.76x = 171,235.26 × 85,975.08
  4. Step 4: Simplify right side
    124,151.76x = 14,721,965,177.32
  5. Step 5: Solve for x
    x = 14,721,965,177.32/124,151.76
  6. Step 6: Final answer
    x = 118,580.40

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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.